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Finding the Fourth Proportional to 636.94, 879.27 and 450.58

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Solution

The fourth proportional to 636.94, 879.27 and 450.58 is: 622.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.94 : 879.27 = 450.58 : x
  2. Step 2: Convert to fraction form
    636.94/879.27 = 450.58/x
  3. Step 3: Cross multiply
    636.94x = 879.27 × 450.58
  4. Step 4: Simplify right side
    636.94x = 396,181.48
  5. Step 5: Solve for x
    x = 396,181.48/636.94
  6. Step 6: Final answer
    x = 622.01

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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.