Home / 427,356.20-641,034.30-267,923.90

Finding the Fourth Proportional to 427,356.20, 641,034.30 and 267,923.90

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Solution

The fourth proportional to 427,356.20, 641,034.30 and 267,923.90 is: 401,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,356.20 : 641,034.30 = 267,923.90 : x
  2. Step 2: Convert to fraction form
    427,356.20/641,034.30 = 267,923.90/x
  3. Step 3: Cross multiply
    427,356.20x = 641,034.30 × 267,923.90
  4. Step 4: Simplify right side
    427,356.20x = 171,748,409,689.77
  5. Step 5: Solve for x
    x = 171,748,409,689.77/427,356.20
  6. Step 6: Final answer
    x = 401,885.85

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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.