Finding the Fourth Proportional to 658,053.20, 987,079.80 and 343,125.20
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Solution
The fourth proportional to 658,053.20, 987,079.80 and 343,125.20 is: 514,687.80
Step by Step Solution
- Step 1: Write the proportion equation
658,053.20 : 987,079.80 = 343,125.20 : x - Step 2: Convert to fraction form
658,053.20/987,079.80 = 343,125.20/x - Step 3: Cross multiply
658,053.20x = 987,079.80 × 343,125.20 - Step 4: Simplify right side
658,053.20x = 338,691,953,790.96 - Step 5: Solve for x
x = 338,691,953,790.96/658,053.20 - Step 6: Final answer
x = 514,687.80
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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.