Home / 494,322.20-741,604.80-139,331.60

Finding the Fourth Proportional to 494,322.20, 741,604.80 and 139,331.60

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Solution

The fourth proportional to 494,322.20, 741,604.80 and 139,331.60 is: 209,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,322.20 : 741,604.80 = 139,331.60 : x
  2. Step 2: Convert to fraction form
    494,322.20/741,604.80 = 139,331.60/x
  3. Step 3: Cross multiply
    494,322.20x = 741,604.80 × 139,331.60
  4. Step 4: Simplify right side
    494,322.20x = 103,328,983,351.68
  5. Step 5: Solve for x
    x = 103,328,983,351.68/494,322.20
  6. Step 6: Final answer
    x = 209,031.65

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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.