Finding the Fourth Proportional to 719,025.14, 992,275.46 and 396,755.99
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Solution
The fourth proportional to 719,025.14, 992,275.46 and 396,755.99 is: 547,534.72
Step by Step Solution
- Step 1: Write the proportion equation
719,025.14 : 992,275.46 = 396,755.99 : x - Step 2: Convert to fraction form
719,025.14/992,275.46 = 396,755.99/x - Step 3: Cross multiply
719,025.14x = 992,275.46 × 396,755.99 - Step 4: Simplify right side
719,025.14x = 393,691,225,539.85 - Step 5: Solve for x
x = 393,691,225,539.85/719,025.14 - Step 6: Final answer
x = 547,534.72
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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.