Home / 327,872.50-491,480.43-127,917.79

Finding the Fourth Proportional to 327,872.50, 491,480.43 and 127,917.79

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Solution

The fourth proportional to 327,872.50, 491,480.43 and 127,917.79 is: 191,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,872.50 : 491,480.43 = 127,917.79 : x
  2. Step 2: Convert to fraction form
    327,872.50/491,480.43 = 127,917.79/x
  3. Step 3: Cross multiply
    327,872.50x = 491,480.43 × 127,917.79
  4. Step 4: Simplify right side
    327,872.50x = 62,869,090,433.85
  5. Step 5: Solve for x
    x = 62,869,090,433.85/327,872.50
  6. Step 6: Final answer
    x = 191,748.59

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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.