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Finding the Fourth Proportional to 662.14, 998.24 and 626.86

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Solution

The fourth proportional to 662.14, 998.24 and 626.86 is: 945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.14 : 998.24 = 626.86 : x
  2. Step 2: Convert to fraction form
    662.14/998.24 = 626.86/x
  3. Step 3: Cross multiply
    662.14x = 998.24 × 626.86
  4. Step 4: Simplify right side
    662.14x = 625,756.73
  5. Step 5: Solve for x
    x = 625,756.73/662.14
  6. Step 6: Final answer
    x = 945.05

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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.