Home / 329,930.46-494,891.36-80,614.62

Finding the Fourth Proportional to 329,930.46, 494,891.36 and 80,614.62

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Solution

The fourth proportional to 329,930.46, 494,891.36 and 80,614.62 is: 120,920.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,930.46 : 494,891.36 = 80,614.62 : x
  2. Step 2: Convert to fraction form
    329,930.46/494,891.36 = 80,614.62/x
  3. Step 3: Cross multiply
    329,930.46x = 494,891.36 × 80,614.62
  4. Step 4: Simplify right side
    329,930.46x = 39,895,478,927.68
  5. Step 5: Solve for x
    x = 39,895,478,927.68/329,930.46
  6. Step 6: Final answer
    x = 120,920.87

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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.