Home / 725,212.80-1,087,387.20-444,931.20

Finding the Fourth Proportional to 725,212.80, 1,087,387.20 and 444,931.20

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Solution

The fourth proportional to 725,212.80, 1,087,387.20 and 444,931.20 is: 667,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,212.80 : 1,087,387.20 = 444,931.20 : x
  2. Step 2: Convert to fraction form
    725,212.80/1,087,387.20 = 444,931.20/x
  3. Step 3: Cross multiply
    725,212.80x = 1,087,387.20 × 444,931.20
  4. Step 4: Simplify right side
    725,212.80x = 483,812,491,760.64
  5. Step 5: Solve for x
    x = 483,812,491,760.64/725,212.80
  6. Step 6: Final answer
    x = 667,131.76

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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.