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Finding the Third Proportional to 355,624 and 839,480

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Solution

The third proportional to 355,624 and 839,480 is: 1,981,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,624 : 839,480 = 839,480 : x
  2. Step 2: Convert to fraction form
    355,624/839,480 = 839,480/x
  3. Step 3: Cross multiply
    355,624x = 839,480 × 839,480
  4. Step 4: Simplify right side
    355,624x = 704,726,670,400
  5. Step 5: Solve for x
    x = 704,726,670,400/355,624
  6. Step 6: Final answer
    x = 1,981,662.29

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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.