Finding the Fourth Proportional to 873,542.52, 1,205,484.84 and 491,575.68
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Solution
The fourth proportional to 873,542.52, 1,205,484.84 and 491,575.68 is: 678,372.28
Step by Step Solution
- Step 1: Write the proportion equation
873,542.52 : 1,205,484.84 = 491,575.68 : x - Step 2: Convert to fraction form
873,542.52/1,205,484.84 = 491,575.68/x - Step 3: Cross multiply
873,542.52x = 1,205,484.84 × 491,575.68 - Step 4: Simplify right side
873,542.52x = 592,587,029,952.69 - Step 5: Solve for x
x = 592,587,029,952.69/873,542.52 - Step 6: Final answer
x = 678,372.28
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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.