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Finding the Fourth Proportional to 512,007.10, 768,010.65 and 325,843.90

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Solution

The fourth proportional to 512,007.10, 768,010.65 and 325,843.90 is: 488,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,007.10 : 768,010.65 = 325,843.90 : x
  2. Step 2: Convert to fraction form
    512,007.10/768,010.65 = 325,843.90/x
  3. Step 3: Cross multiply
    512,007.10x = 768,010.65 × 325,843.90
  4. Step 4: Simplify right side
    512,007.10x = 250,251,585,437.54
  5. Step 5: Solve for x
    x = 250,251,585,437.54/512,007.10
  6. Step 6: Final answer
    x = 488,765.85

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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.