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Finding the Fourth Proportional to 960.03, 1,324.40 and 605.79

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Solution

The fourth proportional to 960.03, 1,324.40 and 605.79 is: 835.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.03 : 1,324.40 = 605.79 : x
  2. Step 2: Convert to fraction form
    960.03/1,324.40 = 605.79/x
  3. Step 3: Cross multiply
    960.03x = 1,324.40 × 605.79
  4. Step 4: Simplify right side
    960.03x = 802,305.25
  5. Step 5: Solve for x
    x = 802,305.25/960.03
  6. Step 6: Final answer
    x = 835.71

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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.