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Finding the Fourth Proportional to 636.95, 879.15 and 598.22

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Solution

The fourth proportional to 636.95, 879.15 and 598.22 is: 825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.95 : 879.15 = 598.22 : x
  2. Step 2: Convert to fraction form
    636.95/879.15 = 598.22/x
  3. Step 3: Cross multiply
    636.95x = 879.15 × 598.22
  4. Step 4: Simplify right side
    636.95x = 525,929.55
  5. Step 5: Solve for x
    x = 525,929.55/636.95
  6. Step 6: Final answer
    x = 825.71

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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.