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Finding the Fourth Proportional to 884.81, 1,324.47 and 753.59

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Solution

The fourth proportional to 884.81, 1,324.47 and 753.59 is: 1,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.81 : 1,324.47 = 753.59 : x
  2. Step 2: Convert to fraction form
    884.81/1,324.47 = 753.59/x
  3. Step 3: Cross multiply
    884.81x = 1,324.47 × 753.59
  4. Step 4: Simplify right side
    884.81x = 998,100.72
  5. Step 5: Solve for x
    x = 998,100.72/884.81
  6. Step 6: Final answer
    x = 1,128.05

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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.