Home / 665,105.30-996,977.55-327,626.90

Finding the Fourth Proportional to 665,105.30, 996,977.55 and 327,626.90

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Solution

The fourth proportional to 665,105.30, 996,977.55 and 327,626.90 is: 491,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,105.30 : 996,977.55 = 327,626.90 : x
  2. Step 2: Convert to fraction form
    665,105.30/996,977.55 = 327,626.90/x
  3. Step 3: Cross multiply
    665,105.30x = 996,977.55 × 327,626.90
  4. Step 4: Simplify right side
    665,105.30x = 326,636,664,076.10
  5. Step 5: Solve for x
    x = 326,636,664,076.10/665,105.30
  6. Step 6: Final answer
    x = 491,105.19

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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.