Proportion Calc at App Store analyse

App power index: 1120 (based on ranks around App Stores today)
Business Education
Developer: youji okamura
Price: 0 free
Current version: 1.1, last update: 4 years ago
First release : 07 Aug 2014
App size: 746 Kb
4.4 ( 3904 ratings )
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Estimation application downloads and cost

> 24.64k
Monthly downloads
~ $ 10.08k
Estimation App Cost


1.0:2.0=X:6.0
Its a simple proportion calculation.

Can you solve the following equations immediately?
1.0:2.0=X:6.0
2.0X=6.0
X=3.0

If you do not understand the meaning of the proportion calculation,
it might give you hard time.
The app gives you a right answer quickly, if only you put figures into
box of a2 or b2. It calculates based on proportion of "a1:b1".
The triangular figure helps you with imaging a proportion.
At the same time, its hypotenuse is also calculated.

Whats a so convenient app!
Why dont you buy it?
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Available in countries
Country Price
Canada 2.79 CAD
China 12 CNY
France 2.29 EUR
Germany 2.29 EUR
Italy 2.29 EUR
Netherlands 2.29 EUR
Portugal 2.29 EUR
Spain 2.29 EUR
Poland 2.29 EUR
UK 1.99 GBP
India 159 INR
Japan 250 JPY
Korea, Republic Of 999.99 KRW
Poland 8.99 PLN
Russia 149 RUB
Turkey 12.99 TRY
USA 1.99 USD
Korea, Republic Of free
Ukraine 1.99 USD
Available for devices
iPhone4, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74,