Home / 800,257.11-1,200,379.28-326,610.31

Finding the Fourth Proportional to 800,257.11, 1,200,379.28 and 326,610.31

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Solution

The fourth proportional to 800,257.11, 1,200,379.28 and 326,610.31 is: 489,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,257.11 : 1,200,379.28 = 326,610.31 : x
  2. Step 2: Convert to fraction form
    800,257.11/1,200,379.28 = 326,610.31/x
  3. Step 3: Cross multiply
    800,257.11x = 1,200,379.28 × 326,610.31
  4. Step 4: Simplify right side
    800,257.11x = 392,056,248,758.38
  5. Step 5: Solve for x
    x = 392,056,248,758.38/800,257.11
  6. Step 6: Final answer
    x = 489,912.86

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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.