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Finding the Third Proportional to 345,210 and 738,399

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Solution

The third proportional to 345,210 and 738,399 is: 1,579,424.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,210 : 738,399 = 738,399 : x
  2. Step 2: Convert to fraction form
    345,210/738,399 = 738,399/x
  3. Step 3: Cross multiply
    345,210x = 738,399 × 738,399
  4. Step 4: Simplify right side
    345,210x = 545,233,083,201
  5. Step 5: Solve for x
    x = 545,233,083,201/345,210
  6. Step 6: Final answer
    x = 1,579,424.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.