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Finding the Third Proportional to 1,778,790 and 3,889,734

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Solution

The third proportional to 1,778,790 and 3,889,734 is: 8,505,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,790 : 3,889,734 = 3,889,734 : x
  2. Step 2: Convert to fraction form
    1,778,790/3,889,734 = 3,889,734/x
  3. Step 3: Cross multiply
    1,778,790x = 3,889,734 × 3,889,734
  4. Step 4: Simplify right side
    1,778,790x = 15,130,030,590,756
  5. Step 5: Solve for x
    x = 15,130,030,590,756/1,778,790
  6. Step 6: Final answer
    x = 8,505,799.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.