Finding the Fourth Proportional to 753,626.97, 1,040,063.09 and 431,438.13
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Solution
The fourth proportional to 753,626.97, 1,040,063.09 and 431,438.13 is: 595,417.75
Step by Step Solution
- Step 1: Write the proportion equation
753,626.97 : 1,040,063.09 = 431,438.13 : x - Step 2: Convert to fraction form
753,626.97/1,040,063.09 = 431,438.13/x - Step 3: Cross multiply
753,626.97x = 1,040,063.09 × 431,438.13 - Step 4: Simplify right side
753,626.97x = 448,722,872,474.43 - Step 5: Solve for x
x = 448,722,872,474.43/753,626.97 - Step 6: Final answer
x = 595,417.75
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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.