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Finding the Fourth Proportional to 683.44, 1,022.42 and 605.53

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Solution

The fourth proportional to 683.44, 1,022.42 and 605.53 is: 905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.44 : 1,022.42 = 605.53 : x
  2. Step 2: Convert to fraction form
    683.44/1,022.42 = 605.53/x
  3. Step 3: Cross multiply
    683.44x = 1,022.42 × 605.53
  4. Step 4: Simplify right side
    683.44x = 619,103.02
  5. Step 5: Solve for x
    x = 619,103.02/683.44
  6. Step 6: Final answer
    x = 905.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.