Home / 725,488.80-1,087,801.20-445,207.20

Finding the Fourth Proportional to 725,488.80, 1,087,801.20 and 445,207.20

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Solution

The fourth proportional to 725,488.80, 1,087,801.20 and 445,207.20 is: 667,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,488.80 : 1,087,801.20 = 445,207.20 : x
  2. Step 2: Convert to fraction form
    725,488.80/1,087,801.20 = 445,207.20/x
  3. Step 3: Cross multiply
    725,488.80x = 1,087,801.20 × 445,207.20
  4. Step 4: Simplify right side
    725,488.80x = 484,296,926,408.64
  5. Step 5: Solve for x
    x = 484,296,926,408.64/725,488.80
  6. Step 6: Final answer
    x = 667,545.70

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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.