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Finding the Fourth Proportional to 888.46, 1,333.36 and 616.44

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Solution

The fourth proportional to 888.46, 1,333.36 and 616.44 is: 925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.46 : 1,333.36 = 616.44 : x
  2. Step 2: Convert to fraction form
    888.46/1,333.36 = 616.44/x
  3. Step 3: Cross multiply
    888.46x = 1,333.36 × 616.44
  4. Step 4: Simplify right side
    888.46x = 821,936.44
  5. Step 5: Solve for x
    x = 821,936.44/888.46
  6. Step 6: Final answer
    x = 925.12

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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.