Home / 431,878.20-647,817.36-231,923.52

Finding the Fourth Proportional to 431,878.20, 647,817.36 and 231,923.52

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Solution

The fourth proportional to 431,878.20, 647,817.36 and 231,923.52 is: 347,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,878.20 : 647,817.36 = 231,923.52 : x
  2. Step 2: Convert to fraction form
    431,878.20/647,817.36 = 231,923.52/x
  3. Step 3: Cross multiply
    431,878.20x = 647,817.36 × 231,923.52
  4. Step 4: Simplify right side
    431,878.20x = 150,244,082,448.31
  5. Step 5: Solve for x
    x = 150,244,082,448.31/431,878.20
  6. Step 6: Final answer
    x = 347,885.31

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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.