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Finding the Third Proportional to 831,900 and 1,789,899

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Solution

The third proportional to 831,900 and 1,789,899 is: 3,851,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,900 : 1,789,899 = 1,789,899 : x
  2. Step 2: Convert to fraction form
    831,900/1,789,899 = 1,789,899/x
  3. Step 3: Cross multiply
    831,900x = 1,789,899 × 1,789,899
  4. Step 4: Simplify right side
    831,900x = 3,203,738,430,201
  5. Step 5: Solve for x
    x = 3,203,738,430,201/831,900
  6. Step 6: Final answer
    x = 3,851,110.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.