Finding the Fourth Proportional to 522,854.80, 783,115.80 and 429,542.80
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Solution
The fourth proportional to 522,854.80, 783,115.80 and 429,542.80 is: 643,355.96
Step by Step Solution
- Step 1: Write the proportion equation
522,854.80 : 783,115.80 = 429,542.80 : x - Step 2: Convert to fraction form
522,854.80/783,115.80 = 429,542.80/x - Step 3: Cross multiply
522,854.80x = 783,115.80 × 429,542.80 - Step 4: Simplify right side
522,854.80x = 336,381,753,456.24 - Step 5: Solve for x
x = 336,381,753,456.24/522,854.80 - Step 6: Final answer
x = 643,355.96
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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.