Home / 645,246.30-967,091.85-329,540.70

Finding the Fourth Proportional to 645,246.30, 967,091.85 and 329,540.70

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Solution

The fourth proportional to 645,246.30, 967,091.85 and 329,540.70 is: 493,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,246.30 : 967,091.85 = 329,540.70 : x
  2. Step 2: Convert to fraction form
    645,246.30/967,091.85 = 329,540.70/x
  3. Step 3: Cross multiply
    645,246.30x = 967,091.85 × 329,540.70
  4. Step 4: Simplify right side
    645,246.30x = 318,696,125,213.30
  5. Step 5: Solve for x
    x = 318,696,125,213.30/645,246.30
  6. Step 6: Final answer
    x = 493,913.91

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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.