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Finding the Fourth Proportional to 700,891.28, 967,230.40 and 378,601.44

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Solution

The fourth proportional to 700,891.28, 967,230.40 and 378,601.44 is: 522,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,891.28 : 967,230.40 = 378,601.44 : x
  2. Step 2: Convert to fraction form
    700,891.28/967,230.40 = 378,601.44/x
  3. Step 3: Cross multiply
    700,891.28x = 967,230.40 × 378,601.44
  4. Step 4: Simplify right side
    700,891.28x = 366,194,822,251.78
  5. Step 5: Solve for x
    x = 366,194,822,251.78/700,891.28
  6. Step 6: Final answer
    x = 522,470.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.