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Finding the Fourth Proportional to 606.94, 837.51 and 449.65

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Solution

The fourth proportional to 606.94, 837.51 and 449.65 is: 620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.94 : 837.51 = 449.65 : x
  2. Step 2: Convert to fraction form
    606.94/837.51 = 449.65/x
  3. Step 3: Cross multiply
    606.94x = 837.51 × 449.65
  4. Step 4: Simplify right side
    606.94x = 376,586.37
  5. Step 5: Solve for x
    x = 376,586.37/606.94
  6. Step 6: Final answer
    x = 620.47

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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.