Home / 454,933.60-682,375.79-139,391.42

Finding the Fourth Proportional to 454,933.60, 682,375.79 and 139,391.42

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Solution

The fourth proportional to 454,933.60, 682,375.79 and 139,391.42 is: 209,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,933.60 : 682,375.79 = 139,391.42 : x
  2. Step 2: Convert to fraction form
    454,933.60/682,375.79 = 139,391.42/x
  3. Step 3: Cross multiply
    454,933.60x = 682,375.79 × 139,391.42
  4. Step 4: Simplify right side
    454,933.60x = 95,117,327,278.32
  5. Step 5: Solve for x
    x = 95,117,327,278.32/454,933.60
  6. Step 6: Final answer
    x = 209,079.58

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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.