Home / 725,704.62-1,087,191.42-425,292.84

Finding the Fourth Proportional to 725,704.62, 1,087,191.42 and 425,292.84

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Solution

The fourth proportional to 725,704.62, 1,087,191.42 and 425,292.84 is: 637,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,704.62 : 1,087,191.42 = 425,292.84 : x
  2. Step 2: Convert to fraction form
    725,704.62/1,087,191.42 = 425,292.84/x
  3. Step 3: Cross multiply
    725,704.62x = 1,087,191.42 × 425,292.84
  4. Step 4: Simplify right side
    725,704.62x = 462,374,726,635.43
  5. Step 5: Solve for x
    x = 462,374,726,635.43/725,704.62
  6. Step 6: Final answer
    x = 637,139.01

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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.