Finding the Fourth Proportional to 990,134.31, 1,366,389.78 and 560,497.49
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Solution
The fourth proportional to 990,134.31, 1,366,389.78 and 560,497.49 is: 773,489.04
Step by Step Solution
- Step 1: Write the proportion equation
990,134.31 : 1,366,389.78 = 560,497.49 : x - Step 2: Convert to fraction form
990,134.31/1,366,389.78 = 560,497.49/x - Step 3: Cross multiply
990,134.31x = 1,366,389.78 × 560,497.49 - Step 4: Simplify right side
990,134.31x = 765,858,035,219.70 - Step 5: Solve for x
x = 765,858,035,219.70/990,134.31 - Step 6: Final answer
x = 773,489.04
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.