Home / 680,869.75-1,021,009.20-231,469.90

Finding the Fourth Proportional to 680,869.75, 1,021,009.20 and 231,469.90

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Solution

The fourth proportional to 680,869.75, 1,021,009.20 and 231,469.90 is: 347,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,869.75 : 1,021,009.20 = 231,469.90 : x
  2. Step 2: Convert to fraction form
    680,869.75/1,021,009.20 = 231,469.90/x
  3. Step 3: Cross multiply
    680,869.75x = 1,021,009.20 × 231,469.90
  4. Step 4: Simplify right side
    680,869.75x = 236,332,897,423.08
  5. Step 5: Solve for x
    x = 236,332,897,423.08/680,869.75
  6. Step 6: Final answer
    x = 347,104.42

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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.