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Finding the Third Proportional to 1,447,979 and 2,190,653

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Solution

The third proportional to 1,447,979 and 2,190,653 is: 3,314,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,979 : 2,190,653 = 2,190,653 : x
  2. Step 2: Convert to fraction form
    1,447,979/2,190,653 = 2,190,653/x
  3. Step 3: Cross multiply
    1,447,979x = 2,190,653 × 2,190,653
  4. Step 4: Simplify right side
    1,447,979x = 4,798,960,566,409
  5. Step 5: Solve for x
    x = 4,798,960,566,409/1,447,979
  6. Step 6: Final answer
    x = 3,314,247.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.