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Finding the Third Proportional to 640,900 and 1,483,642

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Solution

The third proportional to 640,900 and 1,483,642 is: 3,434,535.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,900 : 1,483,642 = 1,483,642 : x
  2. Step 2: Convert to fraction form
    640,900/1,483,642 = 1,483,642/x
  3. Step 3: Cross multiply
    640,900x = 1,483,642 × 1,483,642
  4. Step 4: Simplify right side
    640,900x = 2,201,193,584,164
  5. Step 5: Solve for x
    x = 2,201,193,584,164/640,900
  6. Step 6: Final answer
    x = 3,434,535.16

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.