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Finding the Third Proportional to 1,605,832 and 2,489,428

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Solution

The third proportional to 1,605,832 and 2,489,428 is: 3,859,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,832 : 2,489,428 = 2,489,428 : x
  2. Step 2: Convert to fraction form
    1,605,832/2,489,428 = 2,489,428/x
  3. Step 3: Cross multiply
    1,605,832x = 2,489,428 × 2,489,428
  4. Step 4: Simplify right side
    1,605,832x = 6,197,251,767,184
  5. Step 5: Solve for x
    x = 6,197,251,767,184/1,605,832
  6. Step 6: Final answer
    x = 3,859,215.51

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.