Finding the Fourth Proportional to 667,760.14, 921,488.97 and 381,224.26
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Solution
The fourth proportional to 667,760.14, 921,488.97 and 381,224.26 is: 526,078.05
Step by Step Solution
- Step 1: Write the proportion equation
667,760.14 : 921,488.97 = 381,224.26 : x - Step 2: Convert to fraction form
667,760.14/921,488.97 = 381,224.26/x - Step 3: Cross multiply
667,760.14x = 921,488.97 × 381,224.26 - Step 4: Simplify right side
667,760.14x = 351,293,950,686.41 - Step 5: Solve for x
x = 351,293,950,686.41/667,760.14 - Step 6: Final answer
x = 526,078.05
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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.