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Finding the Third Proportional to 2,738,985 and 4,257,987

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Solution

The third proportional to 2,738,985 and 4,257,987 is: 6,619,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738,985 : 4,257,987 = 4,257,987 : x
  2. Step 2: Convert to fraction form
    2,738,985/4,257,987 = 4,257,987/x
  3. Step 3: Cross multiply
    2,738,985x = 4,257,987 × 4,257,987
  4. Step 4: Simplify right side
    2,738,985x = 18,130,453,292,169
  5. Step 5: Solve for x
    x = 18,130,453,292,169/2,738,985
  6. Step 6: Final answer
    x = 6,619,405.84

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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.