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Finding the Fourth Proportional to 683.39, 942.36 and 484.13

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Solution

The fourth proportional to 683.39, 942.36 and 484.13 is: 667.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.39 : 942.36 = 484.13 : x
  2. Step 2: Convert to fraction form
    683.39/942.36 = 484.13/x
  3. Step 3: Cross multiply
    683.39x = 942.36 × 484.13
  4. Step 4: Simplify right side
    683.39x = 456,224.75
  5. Step 5: Solve for x
    x = 456,224.75/683.39
  6. Step 6: Final answer
    x = 667.59

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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.