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Finding the Third Proportional to 1,390,662.42 and 2,887,906.92

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Solution

The third proportional to 1,390,662.42 and 2,887,906.92 is: 5,997,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,662.42 : 2,887,906.92 = 2,887,906.92 : x
  2. Step 2: Convert to fraction form
    1,390,662.42/2,887,906.92 = 2,887,906.92/x
  3. Step 3: Cross multiply
    1,390,662.42x = 2,887,906.92 × 2,887,906.92
  4. Step 4: Simplify right side
    1,390,662.42x = 8,340,006,389,413.54
  5. Step 5: Solve for x
    x = 8,340,006,389,413.54/1,390,662.42
  6. Step 6: Final answer
    x = 5,997,146.58

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.