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Finding the Third Proportional to 774,794 and 1,678,272

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Solution

The third proportional to 774,794 and 1,678,272 is: 3,635,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,794 : 1,678,272 = 1,678,272 : x
  2. Step 2: Convert to fraction form
    774,794/1,678,272 = 1,678,272/x
  3. Step 3: Cross multiply
    774,794x = 1,678,272 × 1,678,272
  4. Step 4: Simplify right side
    774,794x = 2,816,596,905,984
  5. Step 5: Solve for x
    x = 2,816,596,905,984/774,794
  6. Step 6: Final answer
    x = 3,635,284.87

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.