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Finding the Third Proportional to 2,738,985.75 and 4,257,990

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Solution

The third proportional to 2,738,985.75 and 4,257,990 is: 6,619,413.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738,985.75 : 4,257,990 = 4,257,990 : x
  2. Step 2: Convert to fraction form
    2,738,985.75/4,257,990 = 4,257,990/x
  3. Step 3: Cross multiply
    2,738,985.75x = 4,257,990 × 4,257,990
  4. Step 4: Simplify right side
    2,738,985.75x = 18,130,478,840,100
  5. Step 5: Solve for x
    x = 18,130,478,840,100/2,738,985.75
  6. Step 6: Final answer
    x = 6,619,413.35

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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.