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Finding the Third Proportional to 322,856 and 709,392

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Solution

The third proportional to 322,856 and 709,392 is: 1,558,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,856 : 709,392 = 709,392 : x
  2. Step 2: Convert to fraction form
    322,856/709,392 = 709,392/x
  3. Step 3: Cross multiply
    322,856x = 709,392 × 709,392
  4. Step 4: Simplify right side
    322,856x = 503,237,009,664
  5. Step 5: Solve for x
    x = 503,237,009,664/322,856
  6. Step 6: Final answer
    x = 1,558,704.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.