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Finding the Third Proportional to 280,820 and 605,924

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Solution

The third proportional to 280,820 and 605,924 is: 1,307,399.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,820 : 605,924 = 605,924 : x
  2. Step 2: Convert to fraction form
    280,820/605,924 = 605,924/x
  3. Step 3: Cross multiply
    280,820x = 605,924 × 605,924
  4. Step 4: Simplify right side
    280,820x = 367,143,893,776
  5. Step 5: Solve for x
    x = 367,143,893,776/280,820
  6. Step 6: Final answer
    x = 1,307,399.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.