Finding the Fourth Proportional to 574,471.80, 861,707.70 and 325,639.80
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Solution
The fourth proportional to 574,471.80, 861,707.70 and 325,639.80 is: 488,459.70
Step by Step Solution
- Step 1: Write the proportion equation
574,471.80 : 861,707.70 = 325,639.80 : x - Step 2: Convert to fraction form
574,471.80/861,707.70 = 325,639.80/x - Step 3: Cross multiply
574,471.80x = 861,707.70 × 325,639.80 - Step 4: Simplify right side
574,471.80x = 280,606,323,086.46 - Step 5: Solve for x
x = 280,606,323,086.46/574,471.80 - Step 6: Final answer
x = 488,459.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.