Finding the Fourth Proportional to 667,761.14, 921,490.35 and 381,225.26
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Solution
The fourth proportional to 667,761.14, 921,490.35 and 381,225.26 is: 526,079.43
Step by Step Solution
- Step 1: Write the proportion equation
667,761.14 : 921,490.35 = 381,225.26 : x - Step 2: Convert to fraction form
667,761.14/921,490.35 = 381,225.26/x - Step 3: Cross multiply
667,761.14x = 921,490.35 × 381,225.26 - Step 4: Simplify right side
667,761.14x = 351,295,398,266.24 - Step 5: Solve for x
x = 351,295,398,266.24/667,761.14 - Step 6: Final answer
x = 526,079.43
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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.