Home / 538,913.82-743,691.25-297,218.73

Finding the Fourth Proportional to 538,913.82, 743,691.25 and 297,218.73

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Solution

The fourth proportional to 538,913.82, 743,691.25 and 297,218.73 is: 410,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,913.82 : 743,691.25 = 297,218.73 : x
  2. Step 2: Convert to fraction form
    538,913.82/743,691.25 = 297,218.73/x
  3. Step 3: Cross multiply
    538,913.82x = 743,691.25 × 297,218.73
  4. Step 4: Simplify right side
    538,913.82x = 221,038,964,375.61
  5. Step 5: Solve for x
    x = 221,038,964,375.61/538,913.82
  6. Step 6: Final answer
    x = 410,156.43

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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.