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Finding the Fourth Proportional to 813,791.52, 1,220,454 and 245,227.68

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Solution

The fourth proportional to 813,791.52, 1,220,454 and 245,227.68 is: 367,771.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,791.52 : 1,220,454 = 245,227.68 : x
  2. Step 2: Convert to fraction form
    813,791.52/1,220,454 = 245,227.68/x
  3. Step 3: Cross multiply
    813,791.52x = 1,220,454 × 245,227.68
  4. Step 4: Simplify right side
    813,791.52x = 299,289,102,966.72
  5. Step 5: Solve for x
    x = 299,289,102,966.72/813,791.52
  6. Step 6: Final answer
    x = 367,771.22

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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.