Home / 667,969.40-1,002,610.20-331,390.10

Finding the Fourth Proportional to 667,969.40, 1,002,610.20 and 331,390.10

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Solution

The fourth proportional to 667,969.40, 1,002,610.20 and 331,390.10 is: 497,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,969.40 : 1,002,610.20 = 331,390.10 : x
  2. Step 2: Convert to fraction form
    667,969.40/1,002,610.20 = 331,390.10/x
  3. Step 3: Cross multiply
    667,969.40x = 1,002,610.20 × 331,390.10
  4. Step 4: Simplify right side
    667,969.40x = 332,255,094,439.02
  5. Step 5: Solve for x
    x = 332,255,094,439.02/667,969.40
  6. Step 6: Final answer
    x = 497,410.65

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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.