Home / 664,989.10-996,827.55-327,753.70

Finding the Fourth Proportional to 664,989.10, 996,827.55 and 327,753.70

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Solution

The fourth proportional to 664,989.10, 996,827.55 and 327,753.70 is: 491,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,989.10 : 996,827.55 = 327,753.70 : x
  2. Step 2: Convert to fraction form
    664,989.10/996,827.55 = 327,753.70/x
  3. Step 3: Cross multiply
    664,989.10x = 996,827.55 × 327,753.70
  4. Step 4: Simplify right side
    664,989.10x = 326,713,917,774.44
  5. Step 5: Solve for x
    x = 326,713,917,774.44/664,989.10
  6. Step 6: Final answer
    x = 491,307.18

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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.