Finding the Fourth Proportional to 990,025.65, 1,366,257.11 and 560,306.07
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Solution
The fourth proportional to 990,025.65, 1,366,257.11 and 560,306.07 is: 773,234.66
Step by Step Solution
- Step 1: Write the proportion equation
990,025.65 : 1,366,257.11 = 560,306.07 : x - Step 2: Convert to fraction form
990,025.65/1,366,257.11 = 560,306.07/x - Step 3: Cross multiply
990,025.65x = 1,366,257.11 × 560,306.07 - Step 4: Simplify right side
990,025.65x = 765,522,149,112.13 - Step 5: Solve for x
x = 765,522,149,112.13/990,025.65 - Step 6: Final answer
x = 773,234.66
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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.