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Finding the Third Proportional to 840,927 and 1,321,656

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Solution

The third proportional to 840,927 and 1,321,656 is: 2,077,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,927 : 1,321,656 = 1,321,656 : x
  2. Step 2: Convert to fraction form
    840,927/1,321,656 = 1,321,656/x
  3. Step 3: Cross multiply
    840,927x = 1,321,656 × 1,321,656
  4. Step 4: Simplify right side
    840,927x = 1,746,774,582,336
  5. Step 5: Solve for x
    x = 1,746,774,582,336/840,927
  6. Step 6: Final answer
    x = 2,077,201.21

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.