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Finding the Third Proportional to 1,287,717.75 and 2,796,869.25

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Solution

The third proportional to 1,287,717.75 and 2,796,869.25 is: 6,074,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,717.75 : 2,796,869.25 = 2,796,869.25 : x
  2. Step 2: Convert to fraction form
    1,287,717.75/2,796,869.25 = 2,796,869.25/x
  3. Step 3: Cross multiply
    1,287,717.75x = 2,796,869.25 × 2,796,869.25
  4. Step 4: Simplify right side
    1,287,717.75x = 7,822,477,601,595.56
  5. Step 5: Solve for x
    x = 7,822,477,601,595.56/1,287,717.75
  6. Step 6: Final answer
    x = 6,074,683.37

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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.