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Finding the Third Proportional to 320,500 and 683,904

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Solution

The third proportional to 320,500 and 683,904 is: 1,459,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,500 : 683,904 = 683,904 : x
  2. Step 2: Convert to fraction form
    320,500/683,904 = 683,904/x
  3. Step 3: Cross multiply
    320,500x = 683,904 × 683,904
  4. Step 4: Simplify right side
    320,500x = 467,724,681,216
  5. Step 5: Solve for x
    x = 467,724,681,216/320,500
  6. Step 6: Final answer
    x = 1,459,359.38

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.