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Finding the Fourth Proportional to 406.16, 604.37 and 404.80

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Solution

The fourth proportional to 406.16, 604.37 and 404.80 is: 602.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.16 : 604.37 = 404.80 : x
  2. Step 2: Convert to fraction form
    406.16/604.37 = 404.80/x
  3. Step 3: Cross multiply
    406.16x = 604.37 × 404.80
  4. Step 4: Simplify right side
    406.16x = 244,645.44
  5. Step 5: Solve for x
    x = 244,645.44/406.16
  6. Step 6: Final answer
    x = 602.33

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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.