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Finding the Fourth Proportional to 671.94, 925.89 and 540.42

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Solution

The fourth proportional to 671.94, 925.89 and 540.42 is: 744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.94 : 925.89 = 540.42 : x
  2. Step 2: Convert to fraction form
    671.94/925.89 = 540.42/x
  3. Step 3: Cross multiply
    671.94x = 925.89 × 540.42
  4. Step 4: Simplify right side
    671.94x = 500,369.47
  5. Step 5: Solve for x
    x = 500,369.47/671.94
  6. Step 6: Final answer
    x = 744.66

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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.