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Finding the Fourth Proportional to 667,014, 1,000,798.20 and 267,937.80

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Solution

The fourth proportional to 667,014, 1,000,798.20 and 267,937.80 is: 402,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,014 : 1,000,798.20 = 267,937.80 : x
  2. Step 2: Convert to fraction form
    667,014/1,000,798.20 = 267,937.80/x
  3. Step 3: Cross multiply
    667,014x = 1,000,798.20 × 267,937.80
  4. Step 4: Simplify right side
    667,014x = 268,151,667,951.96
  5. Step 5: Solve for x
    x = 268,151,667,951.96/667,014
  6. Step 6: Final answer
    x = 402,018.05

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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.