Finding the Fourth Proportional to 1,240,581.24, 1,861,130.10 and 387,618.42
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Solution
The fourth proportional to 1,240,581.24, 1,861,130.10 and 387,618.42 is: 581,508.32
Step by Step Solution
- Step 1: Write the proportion equation
1,240,581.24 : 1,861,130.10 = 387,618.42 : x - Step 2: Convert to fraction form
1,240,581.24/1,861,130.10 = 387,618.42/x - Step 3: Cross multiply
1,240,581.24x = 1,861,130.10 × 387,618.42 - Step 4: Simplify right side
1,240,581.24x = 721,408,308,776.44 - Step 5: Solve for x
x = 721,408,308,776.44/1,240,581.24 - Step 6: Final answer
x = 581,508.32
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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.