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Finding the Third Proportional to 554,404 and 858,102

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Solution

The third proportional to 554,404 and 858,102 is: 1,328,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,404 : 858,102 = 858,102 : x
  2. Step 2: Convert to fraction form
    554,404/858,102 = 858,102/x
  3. Step 3: Cross multiply
    554,404x = 858,102 × 858,102
  4. Step 4: Simplify right side
    554,404x = 736,339,042,404
  5. Step 5: Solve for x
    x = 736,339,042,404/554,404
  6. Step 6: Final answer
    x = 1,328,163.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.