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Finding the Third Proportional to 728,363 and 1,485,640

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Solution

The third proportional to 728,363 and 1,485,640 is: 3,030,255.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,363 : 1,485,640 = 1,485,640 : x
  2. Step 2: Convert to fraction form
    728,363/1,485,640 = 1,485,640/x
  3. Step 3: Cross multiply
    728,363x = 1,485,640 × 1,485,640
  4. Step 4: Simplify right side
    728,363x = 2,207,126,209,600
  5. Step 5: Solve for x
    x = 2,207,126,209,600/728,363
  6. Step 6: Final answer
    x = 3,030,255.81

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.