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Finding the Fourth Proportional to 829.76, 1,244.10 and 537.44

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Solution

The fourth proportional to 829.76, 1,244.10 and 537.44 is: 805.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    829.76 : 1,244.10 = 537.44 : x
  2. Step 2: Convert to fraction form
    829.76/1,244.10 = 537.44/x
  3. Step 3: Cross multiply
    829.76x = 1,244.10 × 537.44
  4. Step 4: Simplify right side
    829.76x = 668,629.10
  5. Step 5: Solve for x
    x = 668,629.10/829.76
  6. Step 6: Final answer
    x = 805.81

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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.