Home / 494,329.20-741,615.30-139,338.60

Finding the Fourth Proportional to 494,329.20, 741,615.30 and 139,338.60

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Solution

The fourth proportional to 494,329.20, 741,615.30 and 139,338.60 is: 209,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,329.20 : 741,615.30 = 139,338.60 : x
  2. Step 2: Convert to fraction form
    494,329.20/741,615.30 = 139,338.60/x
  3. Step 3: Cross multiply
    494,329.20x = 741,615.30 × 139,338.60
  4. Step 4: Simplify right side
    494,329.20x = 103,335,637,640.58
  5. Step 5: Solve for x
    x = 103,335,637,640.58/494,329.20
  6. Step 6: Final answer
    x = 209,042.15

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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.