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Finding the Fourth Proportional to 494,410.80, 741,616.20 and 120,433.80

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Solution

The fourth proportional to 494,410.80, 741,616.20 and 120,433.80 is: 180,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,410.80 : 741,616.20 = 120,433.80 : x
  2. Step 2: Convert to fraction form
    494,410.80/741,616.20 = 120,433.80/x
  3. Step 3: Cross multiply
    494,410.80x = 741,616.20 × 120,433.80
  4. Step 4: Simplify right side
    494,410.80x = 89,315,657,107.56
  5. Step 5: Solve for x
    x = 89,315,657,107.56/494,410.80
  6. Step 6: Final answer
    x = 180,650.70

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Similar ratio
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1.5x scale

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.