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Finding the Third Proportional to 1,277,605.50 and 1,977,921

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Solution

The third proportional to 1,277,605.50 and 1,977,921 is: 3,062,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,605.50 : 1,977,921 = 1,977,921 : x
  2. Step 2: Convert to fraction form
    1,277,605.50/1,977,921 = 1,977,921/x
  3. Step 3: Cross multiply
    1,277,605.50x = 1,977,921 × 1,977,921
  4. Step 4: Simplify right side
    1,277,605.50x = 3,912,171,482,241
  5. Step 5: Solve for x
    x = 3,912,171,482,241/1,277,605.50
  6. Step 6: Final answer
    x = 3,062,112.27

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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.