Home / 494,572.20-741,785.40-139,622.10

Finding the Fourth Proportional to 494,572.20, 741,785.40 and 139,622.10

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Solution

The fourth proportional to 494,572.20, 741,785.40 and 139,622.10 is: 209,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,572.20 : 741,785.40 = 139,622.10 : x
  2. Step 2: Convert to fraction form
    494,572.20/741,785.40 = 139,622.10/x
  3. Step 3: Cross multiply
    494,572.20x = 741,785.40 × 139,622.10
  4. Step 4: Simplify right side
    494,572.20x = 103,569,635,297.34
  5. Step 5: Solve for x
    x = 103,569,635,297.34/494,572.20
  6. Step 6: Final answer
    x = 209,412.57

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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.