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Finding the Third Proportional to 418,492 and 891,734

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Solution

The third proportional to 418,492 and 891,734 is: 1,900,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,492 : 891,734 = 891,734 : x
  2. Step 2: Convert to fraction form
    418,492/891,734 = 891,734/x
  3. Step 3: Cross multiply
    418,492x = 891,734 × 891,734
  4. Step 4: Simplify right side
    418,492x = 795,189,526,756
  5. Step 5: Solve for x
    x = 795,189,526,756/418,492
  6. Step 6: Final answer
    x = 1,900,130.77

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.