Finding the Fourth Proportional to 990,350.70, 1,366,688.07 and 560,713.74
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Solution
The fourth proportional to 990,350.70, 1,366,688.07 and 560,713.74 is: 773,787.28
Step by Step Solution
- Step 1: Write the proportion equation
990,350.70 : 1,366,688.07 = 560,713.74 : x - Step 2: Convert to fraction form
990,350.70/1,366,688.07 = 560,713.74/x - Step 3: Cross multiply
990,350.70x = 1,366,688.07 × 560,713.74 - Step 4: Simplify right side
990,350.70x = 766,320,779,143.08 - Step 5: Solve for x
x = 766,320,779,143.08/990,350.70 - Step 6: Final answer
x = 773,787.28
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1.5x scale
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.