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Finding the Fourth Proportional to 626.10, 858.97 and 609.93

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Solution

The fourth proportional to 626.10, 858.97 and 609.93 is: 836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.10 : 858.97 = 609.93 : x
  2. Step 2: Convert to fraction form
    626.10/858.97 = 609.93/x
  3. Step 3: Cross multiply
    626.10x = 858.97 × 609.93
  4. Step 4: Simplify right side
    626.10x = 523,912.33
  5. Step 5: Solve for x
    x = 523,912.33/626.10
  6. Step 6: Final answer
    x = 836.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.