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Finding the Fourth Proportional to 543,122.38, 749,508.88 and 331,154.38

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Solution

The fourth proportional to 543,122.38, 749,508.88 and 331,154.38 is: 456,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,122.38 : 749,508.88 = 331,154.38 : x
  2. Step 2: Convert to fraction form
    543,122.38/749,508.88 = 331,154.38/x
  3. Step 3: Cross multiply
    543,122.38x = 749,508.88 × 331,154.38
  4. Step 4: Simplify right side
    543,122.38x = 248,203,144,713.35
  5. Step 5: Solve for x
    x = 248,203,144,713.35/543,122.38
  6. Step 6: Final answer
    x = 456,993.04

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.