Home / 512,749.12-769,212.32-228,540.80

Finding the Fourth Proportional to 512,749.12, 769,212.32 and 228,540.80

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Solution

The fourth proportional to 512,749.12, 769,212.32 and 228,540.80 is: 342,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,749.12 : 769,212.32 = 228,540.80 : x
  2. Step 2: Convert to fraction form
    512,749.12/769,212.32 = 228,540.80/x
  3. Step 3: Cross multiply
    512,749.12x = 769,212.32 × 228,540.80
  4. Step 4: Simplify right side
    512,749.12x = 175,796,398,982.66
  5. Step 5: Solve for x
    x = 175,796,398,982.66/512,749.12
  6. Step 6: Final answer
    x = 342,850.71

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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.