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Finding the Fourth Proportional to 605,763.70, 908,645.55 and 206,854.90

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Solution

The fourth proportional to 605,763.70, 908,645.55 and 206,854.90 is: 310,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,763.70 : 908,645.55 = 206,854.90 : x
  2. Step 2: Convert to fraction form
    605,763.70/908,645.55 = 206,854.90/x
  3. Step 3: Cross multiply
    605,763.70x = 908,645.55 × 206,854.90
  4. Step 4: Simplify right side
    605,763.70x = 187,957,784,380.70
  5. Step 5: Solve for x
    x = 187,957,784,380.70/605,763.70
  6. Step 6: Final answer
    x = 310,282.35

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Similar ratio
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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.