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Finding the Fourth Proportional to 596.40, 892.20 and 538.80

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Solution

The fourth proportional to 596.40, 892.20 and 538.80 is: 806.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    596.40 : 892.20 = 538.80 : x
  2. Step 2: Convert to fraction form
    596.40/892.20 = 538.80/x
  3. Step 3: Cross multiply
    596.40x = 892.20 × 538.80
  4. Step 4: Simplify right side
    596.40x = 480,717.36
  5. Step 5: Solve for x
    x = 480,717.36/596.40
  6. Step 6: Final answer
    x = 806.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.