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Finding the Fourth Proportional to 494,400.90, 741,601.35 and 120,423.90

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Solution

The fourth proportional to 494,400.90, 741,601.35 and 120,423.90 is: 180,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,400.90 : 741,601.35 = 120,423.90 : x
  2. Step 2: Convert to fraction form
    494,400.90/741,601.35 = 120,423.90/x
  3. Step 3: Cross multiply
    494,400.90x = 741,601.35 × 120,423.90
  4. Step 4: Simplify right side
    494,400.90x = 89,306,526,812.27
  5. Step 5: Solve for x
    x = 89,306,526,812.27/494,400.90
  6. Step 6: Final answer
    x = 180,635.85

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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.