Finding the Fourth Proportional to 728,229.96, 1,092,691.62 and 328,992.84
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Solution
The fourth proportional to 728,229.96, 1,092,691.62 and 328,992.84 is: 493,645.88
Step by Step Solution
- Step 1: Write the proportion equation
728,229.96 : 1,092,691.62 = 328,992.84 : x - Step 2: Convert to fraction form
728,229.96/1,092,691.62 = 328,992.84/x - Step 3: Cross multiply
728,229.96x = 1,092,691.62 × 328,992.84 - Step 4: Simplify right side
728,229.96x = 359,487,719,308.00 - Step 5: Solve for x
x = 359,487,719,308.00/728,229.96 - Step 6: Final answer
x = 493,645.88
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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.