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Finding the Third Proportional to 349,520 and 764,456

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Solution

The third proportional to 349,520 and 764,456 is: 1,671,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,520 : 764,456 = 764,456 : x
  2. Step 2: Convert to fraction form
    349,520/764,456 = 764,456/x
  3. Step 3: Cross multiply
    349,520x = 764,456 × 764,456
  4. Step 4: Simplify right side
    349,520x = 584,392,975,936
  5. Step 5: Solve for x
    x = 584,392,975,936/349,520
  6. Step 6: Final answer
    x = 1,671,987.23

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.