Finding the Fourth Proportional to 624,612.43, 861,964.97 and 338,132.31
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Solution
The fourth proportional to 624,612.43, 861,964.97 and 338,132.31 is: 466,622.49
Step by Step Solution
- Step 1: Write the proportion equation
624,612.43 : 861,964.97 = 338,132.31 : x - Step 2: Convert to fraction form
624,612.43/861,964.97 = 338,132.31/x - Step 3: Cross multiply
624,612.43x = 861,964.97 × 338,132.31 - Step 4: Simplify right side
624,612.43x = 291,458,206,445.18 - Step 5: Solve for x
x = 291,458,206,445.18/624,612.43 - Step 6: Final answer
x = 466,622.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.