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Finding the Fourth Proportional to 1,336.43, 2,004.60 and 605.49

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Solution

The fourth proportional to 1,336.43, 2,004.60 and 605.49 is: 908.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.43 : 2,004.60 = 605.49 : x
  2. Step 2: Convert to fraction form
    1,336.43/2,004.60 = 605.49/x
  3. Step 3: Cross multiply
    1,336.43x = 2,004.60 × 605.49
  4. Step 4: Simplify right side
    1,336.43x = 1,213,765.25
  5. Step 5: Solve for x
    x = 1,213,765.25/1,336.43
  6. Step 6: Final answer
    x = 908.22

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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.