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Finding the Third Proportional to 401,064 and 891,788

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Solution

The third proportional to 401,064 and 891,788 is: 1,982,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,064 : 891,788 = 891,788 : x
  2. Step 2: Convert to fraction form
    401,064/891,788 = 891,788/x
  3. Step 3: Cross multiply
    401,064x = 891,788 × 891,788
  4. Step 4: Simplify right side
    401,064x = 795,285,836,944
  5. Step 5: Solve for x
    x = 795,285,836,944/401,064
  6. Step 6: Final answer
    x = 1,982,939.97

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.