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Finding the Fourth Proportional to 490.35, 732.39 and 444.99

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Solution

The fourth proportional to 490.35, 732.39 and 444.99 is: 664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.35 : 732.39 = 444.99 : x
  2. Step 2: Convert to fraction form
    490.35/732.39 = 444.99/x
  3. Step 3: Cross multiply
    490.35x = 732.39 × 444.99
  4. Step 4: Simplify right side
    490.35x = 325,906.23
  5. Step 5: Solve for x
    x = 325,906.23/490.35
  6. Step 6: Final answer
    x = 664.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.