Finding the Fourth Proportional to 703,441.31, 970,760.15 and 393,378.68
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Solution
The fourth proportional to 703,441.31, 970,760.15 and 393,378.68 is: 542,868.80
Step by Step Solution
- Step 1: Write the proportion equation
703,441.31 : 970,760.15 = 393,378.68 : x - Step 2: Convert to fraction form
703,441.31/970,760.15 = 393,378.68/x - Step 3: Cross multiply
703,441.31x = 970,760.15 × 393,378.68 - Step 4: Simplify right side
703,441.31x = 381,876,339,582.91 - Step 5: Solve for x
x = 381,876,339,582.91/703,441.31 - Step 6: Final answer
x = 542,868.80
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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.