Home / 324,627.20-486,609.60-219,456.80

Finding the Fourth Proportional to 324,627.20, 486,609.60 and 219,456.80

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Solution

The fourth proportional to 324,627.20, 486,609.60 and 219,456.80 is: 328,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,627.20 : 486,609.60 = 219,456.80 : x
  2. Step 2: Convert to fraction form
    324,627.20/486,609.60 = 219,456.80/x
  3. Step 3: Cross multiply
    324,627.20x = 486,609.60 × 219,456.80
  4. Step 4: Simplify right side
    324,627.20x = 106,789,785,665.28
  5. Step 5: Solve for x
    x = 106,789,785,665.28/324,627.20
  6. Step 6: Final answer
    x = 328,961.30

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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.