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Finding the Fourth Proportional to 529.68, 791.26 and 382.17

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Solution

The fourth proportional to 529.68, 791.26 and 382.17 is: 570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.68 : 791.26 = 382.17 : x
  2. Step 2: Convert to fraction form
    529.68/791.26 = 382.17/x
  3. Step 3: Cross multiply
    529.68x = 791.26 × 382.17
  4. Step 4: Simplify right side
    529.68x = 302,393.34
  5. Step 5: Solve for x
    x = 302,393.34/529.68
  6. Step 6: Final answer
    x = 570.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.