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Finding the Fourth Proportional to 626,614.53, 940,042.64 and 266,778.79

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Solution

The fourth proportional to 626,614.53, 940,042.64 and 266,778.79 is: 400,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,614.53 : 940,042.64 = 266,778.79 : x
  2. Step 2: Convert to fraction form
    626,614.53/940,042.64 = 266,778.79/x
  3. Step 3: Cross multiply
    626,614.53x = 940,042.64 × 266,778.79
  4. Step 4: Simplify right side
    626,614.53x = 250,783,439,115.43
  5. Step 5: Solve for x
    x = 250,783,439,115.43/626,614.53
  6. Step 6: Final answer
    x = 400,219.64

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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.