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Finding the Fourth Proportional to 606.31, 837.47 and 449.17

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Solution

The fourth proportional to 606.31, 837.47 and 449.17 is: 620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.31 : 837.47 = 449.17 : x
  2. Step 2: Convert to fraction form
    606.31/837.47 = 449.17/x
  3. Step 3: Cross multiply
    606.31x = 837.47 × 449.17
  4. Step 4: Simplify right side
    606.31x = 376,166.40
  5. Step 5: Solve for x
    x = 376,166.40/606.31
  6. Step 6: Final answer
    x = 620.42

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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.