Home / 454,936.72-682,380.46-139,394.54

Finding the Fourth Proportional to 454,936.72, 682,380.46 and 139,394.54

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Solution

The fourth proportional to 454,936.72, 682,380.46 and 139,394.54 is: 209,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,936.72 : 682,380.46 = 139,394.54 : x
  2. Step 2: Convert to fraction form
    454,936.72/682,380.46 = 139,394.54/x
  3. Step 3: Cross multiply
    454,936.72x = 682,380.46 × 139,394.54
  4. Step 4: Simplify right side
    454,936.72x = 95,120,110,326.69
  5. Step 5: Solve for x
    x = 95,120,110,326.69/454,936.72
  6. Step 6: Final answer
    x = 209,084.27

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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.