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Finding the Third Proportional to 2,660,388 and 4,127,219

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Solution

The third proportional to 2,660,388 and 4,127,219 is: 6,402,801.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,388 : 4,127,219 = 4,127,219 : x
  2. Step 2: Convert to fraction form
    2,660,388/4,127,219 = 4,127,219/x
  3. Step 3: Cross multiply
    2,660,388x = 4,127,219 × 4,127,219
  4. Step 4: Simplify right side
    2,660,388x = 17,033,936,673,961
  5. Step 5: Solve for x
    x = 17,033,936,673,961/2,660,388
  6. Step 6: Final answer
    x = 6,402,801.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.