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Finding the Third Proportional to 1,638,498 and 2,543,985

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Solution

The third proportional to 1,638,498 and 2,543,985 is: 3,949,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,498 : 2,543,985 = 2,543,985 : x
  2. Step 2: Convert to fraction form
    1,638,498/2,543,985 = 2,543,985/x
  3. Step 3: Cross multiply
    1,638,498x = 2,543,985 × 2,543,985
  4. Step 4: Simplify right side
    1,638,498x = 6,471,859,680,225
  5. Step 5: Solve for x
    x = 6,471,859,680,225/1,638,498
  6. Step 6: Final answer
    x = 3,949,873.41

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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.