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Finding the Third Proportional to 478,980 and 798,265

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Solution

The third proportional to 478,980 and 798,265 is: 1,330,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,980 : 798,265 = 798,265 : x
  2. Step 2: Convert to fraction form
    478,980/798,265 = 798,265/x
  3. Step 3: Cross multiply
    478,980x = 798,265 × 798,265
  4. Step 4: Simplify right side
    478,980x = 637,227,010,225
  5. Step 5: Solve for x
    x = 637,227,010,225/478,980
  6. Step 6: Final answer
    x = 1,330,383.34

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.