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Finding the Fourth Proportional to 888.71, 1,338.24 and 659.23

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Solution

The fourth proportional to 888.71, 1,338.24 and 659.23 is: 992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.71 : 1,338.24 = 659.23 : x
  2. Step 2: Convert to fraction form
    888.71/1,338.24 = 659.23/x
  3. Step 3: Cross multiply
    888.71x = 1,338.24 × 659.23
  4. Step 4: Simplify right side
    888.71x = 882,207.96
  5. Step 5: Solve for x
    x = 882,207.96/888.71
  6. Step 6: Final answer
    x = 992.68

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.