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Finding the Fourth Proportional to 629,589.75, 868,808.51 and 343,103.69

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Solution

The fourth proportional to 629,589.75, 868,808.51 and 343,103.69 is: 473,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,589.75 : 868,808.51 = 343,103.69 : x
  2. Step 2: Convert to fraction form
    629,589.75/868,808.51 = 343,103.69/x
  3. Step 3: Cross multiply
    629,589.75x = 868,808.51 × 343,103.69
  4. Step 4: Simplify right side
    629,589.75x = 298,091,399,624.84
  5. Step 5: Solve for x
    x = 298,091,399,624.84/629,589.75
  6. Step 6: Final answer
    x = 473,469.27

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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.