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Finding the Third Proportional to 442,009 and 679,793

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Solution

The third proportional to 442,009 and 679,793 is: 1,045,495.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,009 : 679,793 = 679,793 : x
  2. Step 2: Convert to fraction form
    442,009/679,793 = 679,793/x
  3. Step 3: Cross multiply
    442,009x = 679,793 × 679,793
  4. Step 4: Simplify right side
    442,009x = 462,118,522,849
  5. Step 5: Solve for x
    x = 462,118,522,849/442,009
  6. Step 6: Final answer
    x = 1,045,495.73

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.