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Finding the Fourth Proportional to 888.22, 1,325.83 and 823.96

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Solution

The fourth proportional to 888.22, 1,325.83 and 823.96 is: 1,229.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.22 : 1,325.83 = 823.96 : x
  2. Step 2: Convert to fraction form
    888.22/1,325.83 = 823.96/x
  3. Step 3: Cross multiply
    888.22x = 1,325.83 × 823.96
  4. Step 4: Simplify right side
    888.22x = 1,092,430.89
  5. Step 5: Solve for x
    x = 1,092,430.89/888.22
  6. Step 6: Final answer
    x = 1,229.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.