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Finding the Fourth Proportional to 606.80, 837.16 and 449.04

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Solution

The fourth proportional to 606.80, 837.16 and 449.04 is: 619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.80 : 837.16 = 449.04 : x
  2. Step 2: Convert to fraction form
    606.80/837.16 = 449.04/x
  3. Step 3: Cross multiply
    606.80x = 837.16 × 449.04
  4. Step 4: Simplify right side
    606.80x = 375,918.33
  5. Step 5: Solve for x
    x = 375,918.33/606.80
  6. Step 6: Final answer
    x = 619.51

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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.