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Finding the Third Proportional to 890,073 and 1,379,089

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Solution

The third proportional to 890,073 and 1,379,089 is: 2,136,775.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,073 : 1,379,089 = 1,379,089 : x
  2. Step 2: Convert to fraction form
    890,073/1,379,089 = 1,379,089/x
  3. Step 3: Cross multiply
    890,073x = 1,379,089 × 1,379,089
  4. Step 4: Simplify right side
    890,073x = 1,901,886,469,921
  5. Step 5: Solve for x
    x = 1,901,886,469,921/890,073
  6. Step 6: Final answer
    x = 2,136,775.83

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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.