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Finding the Fourth Proportional to 605,366.52, 908,049.78 and 285,443.94

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Solution

The fourth proportional to 605,366.52, 908,049.78 and 285,443.94 is: 428,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,366.52 : 908,049.78 = 285,443.94 : x
  2. Step 2: Convert to fraction form
    605,366.52/908,049.78 = 285,443.94/x
  3. Step 3: Cross multiply
    605,366.52x = 908,049.78 × 285,443.94
  4. Step 4: Simplify right side
    605,366.52x = 259,197,306,919.33
  5. Step 5: Solve for x
    x = 259,197,306,919.33/605,366.52
  6. Step 6: Final answer
    x = 428,165.91

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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.