Finding the Fourth Proportional to 872,765.62, 1,309,135.29 and 392,654.38
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Solution
The fourth proportional to 872,765.62, 1,309,135.29 and 392,654.38 is: 588,975.65
Step by Step Solution
- Step 1: Write the proportion equation
872,765.62 : 1,309,135.29 = 392,654.38 : x - Step 2: Convert to fraction form
872,765.62/1,309,135.29 = 392,654.38/x - Step 3: Cross multiply
872,765.62x = 1,309,135.29 × 392,654.38 - Step 4: Simplify right side
872,765.62x = 514,037,701,131.09 - Step 5: Solve for x
x = 514,037,701,131.09/872,765.62 - Step 6: Final answer
x = 588,975.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.