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Finding the Fourth Proportional to 637, 879.38 and 598.60

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Solution

The fourth proportional to 637, 879.38 and 598.60 is: 826.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    637 : 879.38 = 598.60 : x
  2. Step 2: Convert to fraction form
    637/879.38 = 598.60/x
  3. Step 3: Cross multiply
    637x = 879.38 × 598.60
  4. Step 4: Simplify right side
    637x = 526,396.87
  5. Step 5: Solve for x
    x = 526,396.87/637
  6. Step 6: Final answer
    x = 826.37

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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.