Finding the Fourth Proportional to 1,232,414.12, 1,700,439.90 and 715,861.13
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Solution
The fourth proportional to 1,232,414.12, 1,700,439.90 and 715,861.13 is: 987,718.99
Step by Step Solution
- Step 1: Write the proportion equation
1,232,414.12 : 1,700,439.90 = 715,861.13 : x - Step 2: Convert to fraction form
1,232,414.12/1,700,439.90 = 715,861.13/x - Step 3: Cross multiply
1,232,414.12x = 1,700,439.90 × 715,861.13 - Step 4: Simplify right side
1,232,414.12x = 1,217,278,819,808.89 - Step 5: Solve for x
x = 1,217,278,819,808.89/1,232,414.12 - Step 6: Final answer
x = 987,718.99
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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.