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Finding the Fourth Proportional to 883.44, 1,323.04 and 512.12

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Solution

The fourth proportional to 883.44, 1,323.04 and 512.12 is: 766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.44 : 1,323.04 = 512.12 : x
  2. Step 2: Convert to fraction form
    883.44/1,323.04 = 512.12/x
  3. Step 3: Cross multiply
    883.44x = 1,323.04 × 512.12
  4. Step 4: Simplify right side
    883.44x = 677,555.24
  5. Step 5: Solve for x
    x = 677,555.24/883.44
  6. Step 6: Final answer
    x = 766.95

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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.