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Finding the Fourth Proportional to 637.14, 879.36 and 587.73

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Solution

The fourth proportional to 637.14, 879.36 and 587.73 is: 811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.14 : 879.36 = 587.73 : x
  2. Step 2: Convert to fraction form
    637.14/879.36 = 587.73/x
  3. Step 3: Cross multiply
    637.14x = 879.36 × 587.73
  4. Step 4: Simplify right side
    637.14x = 516,826.25
  5. Step 5: Solve for x
    x = 516,826.25/637.14
  6. Step 6: Final answer
    x = 811.17

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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.