Home / 667,915.40-1,002,529.20-331,336.10

Finding the Fourth Proportional to 667,915.40, 1,002,529.20 and 331,336.10

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Solution

The fourth proportional to 667,915.40, 1,002,529.20 and 331,336.10 is: 497,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,915.40 : 1,002,529.20 = 331,336.10 : x
  2. Step 2: Convert to fraction form
    667,915.40/1,002,529.20 = 331,336.10/x
  3. Step 3: Cross multiply
    667,915.40x = 1,002,529.20 × 331,336.10
  4. Step 4: Simplify right side
    667,915.40x = 332,174,115,264.12
  5. Step 5: Solve for x
    x = 332,174,115,264.12/667,915.40
  6. Step 6: Final answer
    x = 497,329.62

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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.