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Finding the Fourth Proportional to 637.27, 879.01 and 497.14

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Solution

The fourth proportional to 637.27, 879.01 and 497.14 is: 685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.27 : 879.01 = 497.14 : x
  2. Step 2: Convert to fraction form
    637.27/879.01 = 497.14/x
  3. Step 3: Cross multiply
    637.27x = 879.01 × 497.14
  4. Step 4: Simplify right side
    637.27x = 436,987.59
  5. Step 5: Solve for x
    x = 436,987.59/637.27
  6. Step 6: Final answer
    x = 685.72

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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.