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Finding the Fourth Proportional to 888.97, 1,226.66 and 495.97

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Solution

The fourth proportional to 888.97, 1,226.66 and 495.97 is: 684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.97 : 1,226.66 = 495.97 : x
  2. Step 2: Convert to fraction form
    888.97/1,226.66 = 495.97/x
  3. Step 3: Cross multiply
    888.97x = 1,226.66 × 495.97
  4. Step 4: Simplify right side
    888.97x = 608,384.73
  5. Step 5: Solve for x
    x = 608,384.73/888.97
  6. Step 6: Final answer
    x = 684.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.