Home / 494,490.70-741,857.55-139,500.10

Finding the Fourth Proportional to 494,490.70, 741,857.55 and 139,500.10

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Solution

The fourth proportional to 494,490.70, 741,857.55 and 139,500.10 is: 209,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,490.70 : 741,857.55 = 139,500.10 : x
  2. Step 2: Convert to fraction form
    494,490.70/741,857.55 = 139,500.10/x
  3. Step 3: Cross multiply
    494,490.70x = 741,857.55 × 139,500.10
  4. Step 4: Simplify right side
    494,490.70x = 103,489,202,410.76
  5. Step 5: Solve for x
    x = 103,489,202,410.76/494,490.70
  6. Step 6: Final answer
    x = 209,284.43

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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.