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Finding the Third Proportional to 821,038 and 1,307,446

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Solution

The third proportional to 821,038 and 1,307,446 is: 2,082,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,038 : 1,307,446 = 1,307,446 : x
  2. Step 2: Convert to fraction form
    821,038/1,307,446 = 1,307,446/x
  3. Step 3: Cross multiply
    821,038x = 1,307,446 × 1,307,446
  4. Step 4: Simplify right side
    821,038x = 1,709,415,042,916
  5. Step 5: Solve for x
    x = 1,709,415,042,916/821,038
  6. Step 6: Final answer
    x = 2,082,016.96

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.