Finding the Fourth Proportional to 987,691.97, 1,363,014.97 and 534,982.97
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Solution
The fourth proportional to 987,691.97, 1,363,014.97 and 534,982.97 is: 738,276.53
Step by Step Solution
- Step 1: Write the proportion equation
987,691.97 : 1,363,014.97 = 534,982.97 : x - Step 2: Convert to fraction form
987,691.97/1,363,014.97 = 534,982.97/x - Step 3: Cross multiply
987,691.97x = 1,363,014.97 × 534,982.97 - Step 4: Simplify right side
987,691.97x = 729,189,798,875.14 - Step 5: Solve for x
x = 729,189,798,875.14/987,691.97 - Step 6: Final answer
x = 738,276.53
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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.