Finding the Fourth Proportional to 624,122.40, 861,391.92 and 382,539.36
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Solution
The fourth proportional to 624,122.40, 861,391.92 and 382,539.36 is: 527,967.45
Step by Step Solution
- Step 1: Write the proportion equation
624,122.40 : 861,391.92 = 382,539.36 : x - Step 2: Convert to fraction form
624,122.40/861,391.92 = 382,539.36/x - Step 3: Cross multiply
624,122.40x = 861,391.92 × 382,539.36 - Step 4: Simplify right side
624,122.40x = 329,516,313,785.97 - Step 5: Solve for x
x = 329,516,313,785.97/624,122.40 - Step 6: Final answer
x = 527,967.45
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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.