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Finding the Fourth Proportional to 632.87, 874.38 and 540.59

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Solution

The fourth proportional to 632.87, 874.38 and 540.59 is: 746.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.87 : 874.38 = 540.59 : x
  2. Step 2: Convert to fraction form
    632.87/874.38 = 540.59/x
  3. Step 3: Cross multiply
    632.87x = 874.38 × 540.59
  4. Step 4: Simplify right side
    632.87x = 472,681.08
  5. Step 5: Solve for x
    x = 472,681.08/632.87
  6. Step 6: Final answer
    x = 746.88

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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.