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Finding the Third Proportional to 985,425 and 2,122,661

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Solution

The third proportional to 985,425 and 2,122,661 is: 4,572,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,425 : 2,122,661 = 2,122,661 : x
  2. Step 2: Convert to fraction form
    985,425/2,122,661 = 2,122,661/x
  3. Step 3: Cross multiply
    985,425x = 2,122,661 × 2,122,661
  4. Step 4: Simplify right side
    985,425x = 4,505,689,720,921
  5. Step 5: Solve for x
    x = 4,505,689,720,921/985,425
  6. Step 6: Final answer
    x = 4,572,331.45

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.