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Finding the Third Proportional to 605,240 and 910,474

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Solution

The third proportional to 605,240 and 910,474 is: 1,369,643.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,240 : 910,474 = 910,474 : x
  2. Step 2: Convert to fraction form
    605,240/910,474 = 910,474/x
  3. Step 3: Cross multiply
    605,240x = 910,474 × 910,474
  4. Step 4: Simplify right side
    605,240x = 828,962,904,676
  5. Step 5: Solve for x
    x = 828,962,904,676/605,240
  6. Step 6: Final answer
    x = 1,369,643.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.