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Finding the Fourth Proportional to 400,787.71, 601,125.67 and 101,249.71

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Solution

The fourth proportional to 400,787.71, 601,125.67 and 101,249.71 is: 151,860.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,787.71 : 601,125.67 = 101,249.71 : x
  2. Step 2: Convert to fraction form
    400,787.71/601,125.67 = 101,249.71/x
  3. Step 3: Cross multiply
    400,787.71x = 601,125.67 × 101,249.71
  4. Step 4: Simplify right side
    400,787.71x = 60,863,798,384.80
  5. Step 5: Solve for x
    x = 60,863,798,384.80/400,787.71
  6. Step 6: Final answer
    x = 151,860.44

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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.