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Finding the Third Proportional to 987,555 and 2,124,933

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Solution

The third proportional to 987,555 and 2,124,933 is: 4,572,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,555 : 2,124,933 = 2,124,933 : x
  2. Step 2: Convert to fraction form
    987,555/2,124,933 = 2,124,933/x
  3. Step 3: Cross multiply
    987,555x = 2,124,933 × 2,124,933
  4. Step 4: Simplify right side
    987,555x = 4,515,340,254,489
  5. Step 5: Solve for x
    x = 4,515,340,254,489/987,555
  6. Step 6: Final answer
    x = 4,572,241.80

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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.