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Finding the Fourth Proportional to 965.04, 1,447.56 and 636.36

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Solution

The fourth proportional to 965.04, 1,447.56 and 636.36 is: 954.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.04 : 1,447.56 = 636.36 : x
  2. Step 2: Convert to fraction form
    965.04/1,447.56 = 636.36/x
  3. Step 3: Cross multiply
    965.04x = 1,447.56 × 636.36
  4. Step 4: Simplify right side
    965.04x = 921,169.28
  5. Step 5: Solve for x
    x = 921,169.28/965.04
  6. Step 6: Final answer
    x = 954.54

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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.