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Finding the Third Proportional to 299,296 and 646,070

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Solution

The third proportional to 299,296 and 646,070 is: 1,394,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,296 : 646,070 = 646,070 : x
  2. Step 2: Convert to fraction form
    299,296/646,070 = 646,070/x
  3. Step 3: Cross multiply
    299,296x = 646,070 × 646,070
  4. Step 4: Simplify right side
    299,296x = 417,406,444,900
  5. Step 5: Solve for x
    x = 417,406,444,900/299,296
  6. Step 6: Final answer
    x = 1,394,627.54

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.