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Finding the Fourth Proportional to 324,620.60, 486,930.90 and 269,324.60

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Solution

The fourth proportional to 324,620.60, 486,930.90 and 269,324.60 is: 403,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,620.60 : 486,930.90 = 269,324.60 : x
  2. Step 2: Convert to fraction form
    324,620.60/486,930.90 = 269,324.60/x
  3. Step 3: Cross multiply
    324,620.60x = 486,930.90 × 269,324.60
  4. Step 4: Simplify right side
    324,620.60x = 131,142,469,870.14
  5. Step 5: Solve for x
    x = 131,142,469,870.14/324,620.60
  6. Step 6: Final answer
    x = 403,986.90

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1.5x scale

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.