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Finding the Fourth Proportional to 2,944,839.78, 4,417,358.49 and 814,745.52

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Solution

The fourth proportional to 2,944,839.78, 4,417,358.49 and 814,745.52 is: 1,222,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,944,839.78 : 4,417,358.49 = 814,745.52 : x
  2. Step 2: Convert to fraction form
    2,944,839.78/4,417,358.49 = 814,745.52/x
  3. Step 3: Cross multiply
    2,944,839.78x = 4,417,358.49 × 814,745.52
  4. Step 4: Simplify right side
    2,944,839.78x = 3,599,023,039,961.47
  5. Step 5: Solve for x
    x = 3,599,023,039,961.47/2,944,839.78
  6. Step 6: Final answer
    x = 1,222,145.62

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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.