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Finding the Fourth Proportional to 550,379.33, 768,872.18 and 550,379.33

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Solution

The fourth proportional to 550,379.33, 768,872.18 and 550,379.33 is: 768,872.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,379.33 : 768,872.18 = 550,379.33 : x
  2. Step 2: Convert to fraction form
    550,379.33/768,872.18 = 550,379.33/x
  3. Step 3: Cross multiply
    550,379.33x = 768,872.18 × 550,379.33
  4. Step 4: Simplify right side
    550,379.33x = 423,171,348,687.78
  5. Step 5: Solve for x
    x = 423,171,348,687.78/550,379.33
  6. Step 6: Final answer
    x = 768,872.18

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.