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Finding the Third Proportional to 821,760 and 1,153,824

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Solution

The third proportional to 821,760 and 1,153,824 is: 1,620,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,760 : 1,153,824 = 1,153,824 : x
  2. Step 2: Convert to fraction form
    821,760/1,153,824 = 1,153,824/x
  3. Step 3: Cross multiply
    821,760x = 1,153,824 × 1,153,824
  4. Step 4: Simplify right side
    821,760x = 1,331,309,822,976
  5. Step 5: Solve for x
    x = 1,331,309,822,976/821,760
  6. Step 6: Final answer
    x = 1,620,071.34

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.