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Finding the Fourth Proportional to 888.48, 1,325.28 and 849.60

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Solution

The fourth proportional to 888.48, 1,325.28 and 849.60 is: 1,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.48 : 1,325.28 = 849.60 : x
  2. Step 2: Convert to fraction form
    888.48/1,325.28 = 849.60/x
  3. Step 3: Cross multiply
    888.48x = 1,325.28 × 849.60
  4. Step 4: Simplify right side
    888.48x = 1,125,957.89
  5. Step 5: Solve for x
    x = 1,125,957.89/888.48
  6. Step 6: Final answer
    x = 1,267.29

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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.