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Finding the Fourth Proportional to 572.18, 791.07 and 433.03

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Solution

The fourth proportional to 572.18, 791.07 and 433.03 is: 598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.18 : 791.07 = 433.03 : x
  2. Step 2: Convert to fraction form
    572.18/791.07 = 433.03/x
  3. Step 3: Cross multiply
    572.18x = 791.07 × 433.03
  4. Step 4: Simplify right side
    572.18x = 342,553.09
  5. Step 5: Solve for x
    x = 342,553.09/572.18
  6. Step 6: Final answer
    x = 598.68

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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.