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Finding the Fourth Proportional to 440.73, 608.57 and 394.02

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Solution

The fourth proportional to 440.73, 608.57 and 394.02 is: 544.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.73 : 608.57 = 394.02 : x
  2. Step 2: Convert to fraction form
    440.73/608.57 = 394.02/x
  3. Step 3: Cross multiply
    440.73x = 608.57 × 394.02
  4. Step 4: Simplify right side
    440.73x = 239,788.75
  5. Step 5: Solve for x
    x = 239,788.75/440.73
  6. Step 6: Final answer
    x = 544.07

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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.