Home / 521,155.36-781,847.79-296,621.47

Finding the Fourth Proportional to 521,155.36, 781,847.79 and 296,621.47

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Solution

The fourth proportional to 521,155.36, 781,847.79 and 296,621.47 is: 444,997.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,155.36 : 781,847.79 = 296,621.47 : x
  2. Step 2: Convert to fraction form
    521,155.36/781,847.79 = 296,621.47/x
  3. Step 3: Cross multiply
    521,155.36x = 781,847.79 × 296,621.47
  4. Step 4: Simplify right side
    521,155.36x = 231,912,840,786.05
  5. Step 5: Solve for x
    x = 231,912,840,786.05/521,155.36
  6. Step 6: Final answer
    x = 444,997.52

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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.