Home / 645,067.44-966,387.38-378,034.74

Finding the Fourth Proportional to 645,067.44, 966,387.38 and 378,034.74

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Solution

The fourth proportional to 645,067.44, 966,387.38 and 378,034.74 is: 566,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,067.44 : 966,387.38 = 378,034.74 : x
  2. Step 2: Convert to fraction form
    645,067.44/966,387.38 = 378,034.74/x
  3. Step 3: Cross multiply
    645,067.44x = 966,387.38 × 378,034.74
  4. Step 4: Simplify right side
    645,067.44x = 365,328,000,047.41
  5. Step 5: Solve for x
    x = 365,328,000,047.41/645,067.44
  6. Step 6: Final answer
    x = 566,340.78

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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.