Home / 431,962.65-647,439.39-325,002.96

Finding the Fourth Proportional to 431,962.65, 647,439.39 and 325,002.96

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Solution

The fourth proportional to 431,962.65, 647,439.39 and 325,002.96 is: 487,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,962.65 : 647,439.39 = 325,002.96 : x
  2. Step 2: Convert to fraction form
    431,962.65/647,439.39 = 325,002.96/x
  3. Step 3: Cross multiply
    431,962.65x = 647,439.39 × 325,002.96
  4. Step 4: Simplify right side
    431,962.65x = 210,419,718,170.59
  5. Step 5: Solve for x
    x = 210,419,718,170.59/431,962.65
  6. Step 6: Final answer
    x = 487,124.80

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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.