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Finding the Fourth Proportional to 603,781.38, 905,616.54 and 204,376.50

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Solution

The fourth proportional to 603,781.38, 905,616.54 and 204,376.50 is: 306,545.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,781.38 : 905,616.54 = 204,376.50 : x
  2. Step 2: Convert to fraction form
    603,781.38/905,616.54 = 204,376.50/x
  3. Step 3: Cross multiply
    603,781.38x = 905,616.54 × 204,376.50
  4. Step 4: Simplify right side
    603,781.38x = 185,086,738,787.31
  5. Step 5: Solve for x
    x = 185,086,738,787.31/603,781.38
  6. Step 6: Final answer
    x = 306,545.95

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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.