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Finding the Fourth Proportional to 1,344.73, 2,017.07 and 998.66

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Solution

The fourth proportional to 1,344.73, 2,017.07 and 998.66 is: 1,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.73 : 2,017.07 = 998.66 : x
  2. Step 2: Convert to fraction form
    1,344.73/2,017.07 = 998.66/x
  3. Step 3: Cross multiply
    1,344.73x = 2,017.07 × 998.66
  4. Step 4: Simplify right side
    1,344.73x = 2,014,352.05
  5. Step 5: Solve for x
    x = 2,014,352.05/1,344.73
  6. Step 6: Final answer
    x = 1,497.96

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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.