Finding the Fourth Proportional to 1,545,207.87, 2,318,143.92 and 520,639.99
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Solution
The fourth proportional to 1,545,207.87, 2,318,143.92 and 520,639.99 is: 781,071.89
Step by Step Solution
- Step 1: Write the proportion equation
1,545,207.87 : 2,318,143.92 = 520,639.99 : x - Step 2: Convert to fraction form
1,545,207.87/2,318,143.92 = 520,639.99/x - Step 3: Cross multiply
1,545,207.87x = 2,318,143.92 × 520,639.99 - Step 4: Simplify right side
1,545,207.87x = 1,206,918,427,327.36 - Step 5: Solve for x
x = 1,206,918,427,327.36/1,545,207.87 - Step 6: Final answer
x = 781,071.89
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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.