Finding the Fourth Proportional to 864,138.27, 1,192,178.21 and 541,286.31
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Solution
The fourth proportional to 864,138.27, 1,192,178.21 and 541,286.31 is: 746,766.77
Step by Step Solution
- Step 1: Write the proportion equation
864,138.27 : 1,192,178.21 = 541,286.31 : x - Step 2: Convert to fraction form
864,138.27/1,192,178.21 = 541,286.31/x - Step 3: Cross multiply
864,138.27x = 1,192,178.21 × 541,286.31 - Step 4: Simplify right side
864,138.27x = 645,309,744,153.31 - Step 5: Solve for x
x = 645,309,744,153.31/864,138.27 - Step 6: Final answer
x = 746,766.77
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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.