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Finding the Third Proportional to 451,618 and 619,268

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Solution

The third proportional to 451,618 and 619,268 is: 849,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,618 : 619,268 = 619,268 : x
  2. Step 2: Convert to fraction form
    451,618/619,268 = 619,268/x
  3. Step 3: Cross multiply
    451,618x = 619,268 × 619,268
  4. Step 4: Simplify right side
    451,618x = 383,492,855,824
  5. Step 5: Solve for x
    x = 383,492,855,824/451,618
  6. Step 6: Final answer
    x = 849,153.17

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.