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Finding the Third Proportional to 646,174 and 1,409,849

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Solution

The third proportional to 646,174 and 1,409,849 is: 3,076,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,174 : 1,409,849 = 1,409,849 : x
  2. Step 2: Convert to fraction form
    646,174/1,409,849 = 1,409,849/x
  3. Step 3: Cross multiply
    646,174x = 1,409,849 × 1,409,849
  4. Step 4: Simplify right side
    646,174x = 1,987,674,202,801
  5. Step 5: Solve for x
    x = 1,987,674,202,801/646,174
  6. Step 6: Final answer
    x = 3,076,066.51

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.