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Finding the Fourth Proportional to 965.04, 1,447.62 and 477.96

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Solution

The fourth proportional to 965.04, 1,447.62 and 477.96 is: 716.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.04 : 1,447.62 = 477.96 : x
  2. Step 2: Convert to fraction form
    965.04/1,447.62 = 477.96/x
  3. Step 3: Cross multiply
    965.04x = 1,447.62 × 477.96
  4. Step 4: Simplify right side
    965.04x = 691,897.22
  5. Step 5: Solve for x
    x = 691,897.22/965.04
  6. Step 6: Final answer
    x = 716.97

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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.