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Finding the Third Proportional to 353,945 and 764,239

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Solution

The third proportional to 353,945 and 764,239 is: 1,650,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,945 : 764,239 = 764,239 : x
  2. Step 2: Convert to fraction form
    353,945/764,239 = 764,239/x
  3. Step 3: Cross multiply
    353,945x = 764,239 × 764,239
  4. Step 4: Simplify right side
    353,945x = 584,061,249,121
  5. Step 5: Solve for x
    x = 584,061,249,121/353,945
  6. Step 6: Final answer
    x = 1,650,146.91

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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.