Home / 538,496.20-743,121.30-296,779

Finding the Fourth Proportional to 538,496.20, 743,121.30 and 296,779

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Solution

The fourth proportional to 538,496.20, 743,121.30 and 296,779 is: 409,553.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,496.20 : 743,121.30 = 296,779 : x
  2. Step 2: Convert to fraction form
    538,496.20/743,121.30 = 296,779/x
  3. Step 3: Cross multiply
    538,496.20x = 743,121.30 × 296,779
  4. Step 4: Simplify right side
    538,496.20x = 220,542,796,292.70
  5. Step 5: Solve for x
    x = 220,542,796,292.70/538,496.20
  6. Step 6: Final answer
    x = 409,553.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.