Home / 494,431.80-741,647.70-139,441.20

Finding the Fourth Proportional to 494,431.80, 741,647.70 and 139,441.20

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Solution

The fourth proportional to 494,431.80, 741,647.70 and 139,441.20 is: 209,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,431.80 : 741,647.70 = 139,441.20 : x
  2. Step 2: Convert to fraction form
    494,431.80/741,647.70 = 139,441.20/x
  3. Step 3: Cross multiply
    494,431.80x = 741,647.70 × 139,441.20
  4. Step 4: Simplify right side
    494,431.80x = 103,416,245,265.24
  5. Step 5: Solve for x
    x = 103,416,245,265.24/494,431.80
  6. Step 6: Final answer
    x = 209,161.80

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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.