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Finding the Fourth Proportional to 637.89, 878.23 and 441.06

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Solution

The fourth proportional to 637.89, 878.23 and 441.06 is: 607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.89 : 878.23 = 441.06 : x
  2. Step 2: Convert to fraction form
    637.89/878.23 = 441.06/x
  3. Step 3: Cross multiply
    637.89x = 878.23 × 441.06
  4. Step 4: Simplify right side
    637.89x = 387,346.90
  5. Step 5: Solve for x
    x = 387,346.90/637.89
  6. Step 6: Final answer
    x = 607.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.