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Finding the Fourth Proportional to 605,612.88, 908,560 and 206,257.06

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Solution

The fourth proportional to 605,612.88, 908,560 and 206,257.06 is: 309,433.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,612.88 : 908,560 = 206,257.06 : x
  2. Step 2: Convert to fraction form
    605,612.88/908,560 = 206,257.06/x
  3. Step 3: Cross multiply
    605,612.88x = 908,560 × 206,257.06
  4. Step 4: Simplify right side
    605,612.88x = 187,396,914,433.60
  5. Step 5: Solve for x
    x = 187,396,914,433.60/605,612.88
  6. Step 6: Final answer
    x = 309,433.50

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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.