Finding the Fourth Proportional to 915,593.36, 1,372,288.39 and 338,756.73
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Solution
The fourth proportional to 915,593.36, 1,372,288.39 and 338,756.73 is: 507,727.50
Step by Step Solution
- Step 1: Write the proportion equation
915,593.36 : 1,372,288.39 = 338,756.73 : x - Step 2: Convert to fraction form
915,593.36/1,372,288.39 = 338,756.73/x - Step 3: Cross multiply
915,593.36x = 1,372,288.39 × 338,756.73 - Step 4: Simplify right side
915,593.36x = 464,871,931,721.38 - Step 5: Solve for x
x = 464,871,931,721.38/915,593.36 - Step 6: Final answer
x = 507,727.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.