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Finding the Fourth Proportional to 683.73, 943.94 and 451.26

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Solution

The fourth proportional to 683.73, 943.94 and 451.26 is: 622.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.73 : 943.94 = 451.26 : x
  2. Step 2: Convert to fraction form
    683.73/943.94 = 451.26/x
  3. Step 3: Cross multiply
    683.73x = 943.94 × 451.26
  4. Step 4: Simplify right side
    683.73x = 425,960.11
  5. Step 5: Solve for x
    x = 425,960.11/683.73
  6. Step 6: Final answer
    x = 622.99

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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.