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Finding the Fourth Proportional to 605,747.64, 908,446.50 and 206,379.57

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Solution

The fourth proportional to 605,747.64, 908,446.50 and 206,379.57 is: 309,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,747.64 : 908,446.50 = 206,379.57 : x
  2. Step 2: Convert to fraction form
    605,747.64/908,446.50 = 206,379.57/x
  3. Step 3: Cross multiply
    605,747.64x = 908,446.50 × 206,379.57
  4. Step 4: Simplify right side
    605,747.64x = 187,484,801,444.68
  5. Step 5: Solve for x
    x = 187,484,801,444.68/605,747.64
  6. Step 6: Final answer
    x = 309,509.75

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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.