Home / 327,876.50-491,486.43-127,921.79

Finding the Fourth Proportional to 327,876.50, 491,486.43 and 127,921.79

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Solution

The fourth proportional to 327,876.50, 491,486.43 and 127,921.79 is: 191,754.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,876.50 : 491,486.43 = 127,921.79 : x
  2. Step 2: Convert to fraction form
    327,876.50/491,486.43 = 127,921.79/x
  3. Step 3: Cross multiply
    327,876.50x = 491,486.43 × 127,921.79
  4. Step 4: Simplify right side
    327,876.50x = 62,871,823,886.31
  5. Step 5: Solve for x
    x = 62,871,823,886.31/327,876.50
  6. Step 6: Final answer
    x = 191,754.59

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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.