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Finding the Third Proportional to 356,122 and 840,661

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Solution

The third proportional to 356,122 and 840,661 is: 1,984,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,122 : 840,661 = 840,661 : x
  2. Step 2: Convert to fraction form
    356,122/840,661 = 840,661/x
  3. Step 3: Cross multiply
    356,122x = 840,661 × 840,661
  4. Step 4: Simplify right side
    356,122x = 706,710,916,921
  5. Step 5: Solve for x
    x = 706,710,916,921/356,122
  6. Step 6: Final answer
    x = 1,984,462.96

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.