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Finding the Fourth Proportional to 573.26, 791.42 and 440.24

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Solution

The fourth proportional to 573.26, 791.42 and 440.24 is: 607.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.26 : 791.42 = 440.24 : x
  2. Step 2: Convert to fraction form
    573.26/791.42 = 440.24/x
  3. Step 3: Cross multiply
    573.26x = 791.42 × 440.24
  4. Step 4: Simplify right side
    573.26x = 348,408.58
  5. Step 5: Solve for x
    x = 348,408.58/573.26
  6. Step 6: Final answer
    x = 607.77

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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.