Home / 680,865.75-1,021,003.20-231,465.87

Finding the Fourth Proportional to 680,865.75, 1,021,003.20 and 231,465.87

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Solution

The fourth proportional to 680,865.75, 1,021,003.20 and 231,465.87 is: 347,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,865.75 : 1,021,003.20 = 231,465.87 : x
  2. Step 2: Convert to fraction form
    680,865.75/1,021,003.20 = 231,465.87/x
  3. Step 3: Cross multiply
    680,865.75x = 1,021,003.20 × 231,465.87
  4. Step 4: Simplify right side
    680,865.75x = 236,327,393,960.78
  5. Step 5: Solve for x
    x = 236,327,393,960.78/680,865.75
  6. Step 6: Final answer
    x = 347,098.37

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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.