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Finding the Fourth Proportional to 636.37, 871.61 and 599.01

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Solution

The fourth proportional to 636.37, 871.61 and 599.01 is: 820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.37 : 871.61 = 599.01 : x
  2. Step 2: Convert to fraction form
    636.37/871.61 = 599.01/x
  3. Step 3: Cross multiply
    636.37x = 871.61 × 599.01
  4. Step 4: Simplify right side
    636.37x = 522,100.11
  5. Step 5: Solve for x
    x = 522,100.11/636.37
  6. Step 6: Final answer
    x = 820.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.