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Finding the Fourth Proportional to 606.44, 834.90 and 553.16

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Solution

The fourth proportional to 606.44, 834.90 and 553.16 is: 761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.44 : 834.90 = 553.16 : x
  2. Step 2: Convert to fraction form
    606.44/834.90 = 553.16/x
  3. Step 3: Cross multiply
    606.44x = 834.90 × 553.16
  4. Step 4: Simplify right side
    606.44x = 461,833.28
  5. Step 5: Solve for x
    x = 461,833.28/606.44
  6. Step 6: Final answer
    x = 761.55

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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.