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Finding the Third Proportional to 349,920 and 839,808

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Solution

The third proportional to 349,920 and 839,808 is: 2,015,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,920 : 839,808 = 839,808 : x
  2. Step 2: Convert to fraction form
    349,920/839,808 = 839,808/x
  3. Step 3: Cross multiply
    349,920x = 839,808 × 839,808
  4. Step 4: Simplify right side
    349,920x = 705,277,476,864
  5. Step 5: Solve for x
    x = 705,277,476,864/349,920
  6. Step 6: Final answer
    x = 2,015,539.20

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.