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Finding the Fourth Proportional to 637.24, 885.32 and 629.56

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Solution

The fourth proportional to 637.24, 885.32 and 629.56 is: 874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.24 : 885.32 = 629.56 : x
  2. Step 2: Convert to fraction form
    637.24/885.32 = 629.56/x
  3. Step 3: Cross multiply
    637.24x = 885.32 × 629.56
  4. Step 4: Simplify right side
    637.24x = 557,362.06
  5. Step 5: Solve for x
    x = 557,362.06/637.24
  6. Step 6: Final answer
    x = 874.65

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.