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Finding the Third Proportional to 1,438,890 and 3,108,324

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Solution

The third proportional to 1,438,890 and 3,108,324 is: 6,714,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,890 : 3,108,324 = 3,108,324 : x
  2. Step 2: Convert to fraction form
    1,438,890/3,108,324 = 3,108,324/x
  3. Step 3: Cross multiply
    1,438,890x = 3,108,324 × 3,108,324
  4. Step 4: Simplify right side
    1,438,890x = 9,661,678,088,976
  5. Step 5: Solve for x
    x = 9,661,678,088,976/1,438,890
  6. Step 6: Final answer
    x = 6,714,674.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.