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Finding the Fourth Proportional to 587.11, 809.97 and 540.48

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Solution

The fourth proportional to 587.11, 809.97 and 540.48 is: 745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.11 : 809.97 = 540.48 : x
  2. Step 2: Convert to fraction form
    587.11/809.97 = 540.48/x
  3. Step 3: Cross multiply
    587.11x = 809.97 × 540.48
  4. Step 4: Simplify right side
    587.11x = 437,772.59
  5. Step 5: Solve for x
    x = 437,772.59/587.11
  6. Step 6: Final answer
    x = 745.64

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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.