Home / 419,917.52-629,747.07-120,317.82

Finding the Fourth Proportional to 419,917.52, 629,747.07 and 120,317.82

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Solution

The fourth proportional to 419,917.52, 629,747.07 and 120,317.82 is: 180,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,917.52 : 629,747.07 = 120,317.82 : x
  2. Step 2: Convert to fraction form
    419,917.52/629,747.07 = 120,317.82/x
  3. Step 3: Cross multiply
    419,917.52x = 629,747.07 × 120,317.82
  4. Step 4: Simplify right side
    419,917.52x = 75,769,794,613.79
  5. Step 5: Solve for x
    x = 75,769,794,613.79/419,917.52
  6. Step 6: Final answer
    x = 180,439.71

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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.