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Finding the Fourth Proportional to 965.83, 1,447.46 and 527.28

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Solution

The fourth proportional to 965.83, 1,447.46 and 527.28 is: 790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    965.83 : 1,447.46 = 527.28 : x
  2. Step 2: Convert to fraction form
    965.83/1,447.46 = 527.28/x
  3. Step 3: Cross multiply
    965.83x = 1,447.46 × 527.28
  4. Step 4: Simplify right side
    965.83x = 763,214.07
  5. Step 5: Solve for x
    x = 763,214.07/965.83
  6. Step 6: Final answer
    x = 790.22

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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.