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Finding the Third Proportional to 1,362,115 and 2,989,909

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Solution

The third proportional to 1,362,115 and 2,989,909 is: 6,562,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,115 : 2,989,909 = 2,989,909 : x
  2. Step 2: Convert to fraction form
    1,362,115/2,989,909 = 2,989,909/x
  3. Step 3: Cross multiply
    1,362,115x = 2,989,909 × 2,989,909
  4. Step 4: Simplify right side
    1,362,115x = 8,939,555,828,281
  5. Step 5: Solve for x
    x = 8,939,555,828,281/1,362,115
  6. Step 6: Final answer
    x = 6,562,996.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.