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Finding the Third Proportional to 987,921 and 2,053,359

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Solution

The third proportional to 987,921 and 2,053,359 is: 4,267,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,921 : 2,053,359 = 2,053,359 : x
  2. Step 2: Convert to fraction form
    987,921/2,053,359 = 2,053,359/x
  3. Step 3: Cross multiply
    987,921x = 2,053,359 × 2,053,359
  4. Step 4: Simplify right side
    987,921x = 4,216,283,182,881
  5. Step 5: Solve for x
    x = 4,216,283,182,881/987,921
  6. Step 6: Final answer
    x = 4,267,834.35

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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.