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Finding the Fourth Proportional to 491,578.73, 737,408.13 and 136,592.79

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Solution

The fourth proportional to 491,578.73, 737,408.13 and 136,592.79 is: 204,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,578.73 : 737,408.13 = 136,592.79 : x
  2. Step 2: Convert to fraction form
    491,578.73/737,408.13 = 136,592.79/x
  3. Step 3: Cross multiply
    491,578.73x = 737,408.13 × 136,592.79
  4. Step 4: Simplify right side
    491,578.73x = 100,724,633,845.38
  5. Step 5: Solve for x
    x = 100,724,633,845.38/491,578.73
  6. Step 6: Final answer
    x = 204,900.31

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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.