Home / 494,540.20-741,931.80-139,549.60

Finding the Fourth Proportional to 494,540.20, 741,931.80 and 139,549.60

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Solution

The fourth proportional to 494,540.20, 741,931.80 and 139,549.60 is: 209,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,540.20 : 741,931.80 = 139,549.60 : x
  2. Step 2: Convert to fraction form
    494,540.20/741,931.80 = 139,549.60/x
  3. Step 3: Cross multiply
    494,540.20x = 741,931.80 × 139,549.60
  4. Step 4: Simplify right side
    494,540.20x = 103,536,285,917.28
  5. Step 5: Solve for x
    x = 103,536,285,917.28/494,540.20
  6. Step 6: Final answer
    x = 209,358.68

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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.