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Finding the Fourth Proportional to 618.84, 843.09 and 606.19

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Solution

The fourth proportional to 618.84, 843.09 and 606.19 is: 825.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.84 : 843.09 = 606.19 : x
  2. Step 2: Convert to fraction form
    618.84/843.09 = 606.19/x
  3. Step 3: Cross multiply
    618.84x = 843.09 × 606.19
  4. Step 4: Simplify right side
    618.84x = 511,072.73
  5. Step 5: Solve for x
    x = 511,072.73/618.84
  6. Step 6: Final answer
    x = 825.86

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.