Home / 427,764.44-641,285.76-269,644.28

Finding the Fourth Proportional to 427,764.44, 641,285.76 and 269,644.28

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Solution

The fourth proportional to 427,764.44, 641,285.76 and 269,644.28 is: 404,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,764.44 : 641,285.76 = 269,644.28 : x
  2. Step 2: Convert to fraction form
    427,764.44/641,285.76 = 269,644.28/x
  3. Step 3: Cross multiply
    427,764.44x = 641,285.76 × 269,644.28
  4. Step 4: Simplify right side
    427,764.44x = 172,919,037,029.45
  5. Step 5: Solve for x
    x = 172,919,037,029.45/427,764.44
  6. Step 6: Final answer
    x = 404,238.92

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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.