Finding the Fourth Proportional to 708,691.20, 1,062,356.40 and 235,132.80
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Solution
The fourth proportional to 708,691.20, 1,062,356.40 and 235,132.80 is: 352,473.45
Step by Step Solution
- Step 1: Write the proportion equation
708,691.20 : 1,062,356.40 = 235,132.80 : x - Step 2: Convert to fraction form
708,691.20/1,062,356.40 = 235,132.80/x - Step 3: Cross multiply
708,691.20x = 1,062,356.40 × 235,132.80 - Step 4: Simplify right side
708,691.20x = 249,794,834,929.92 - Step 5: Solve for x
x = 249,794,834,929.92/708,691.20 - Step 6: Final answer
x = 352,473.45
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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.