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Finding the Third Proportional to 547,399 and 820,277.50

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Solution

The third proportional to 547,399 and 820,277.50 is: 1,229,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,399 : 820,277.50 = 820,277.50 : x
  2. Step 2: Convert to fraction form
    547,399/820,277.50 = 820,277.50/x
  3. Step 3: Cross multiply
    547,399x = 820,277.50 × 820,277.50
  4. Step 4: Simplify right side
    547,399x = 672,855,177,006.25
  5. Step 5: Solve for x
    x = 672,855,177,006.25/547,399
  6. Step 6: Final answer
    x = 1,229,185.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.