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Finding the Third Proportional to 618,905.81 and 1,329,326.44

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Solution

The third proportional to 618,905.81 and 1,329,326.44 is: 2,855,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,905.81 : 1,329,326.44 = 1,329,326.44 : x
  2. Step 2: Convert to fraction form
    618,905.81/1,329,326.44 = 1,329,326.44/x
  3. Step 3: Cross multiply
    618,905.81x = 1,329,326.44 × 1,329,326.44
  4. Step 4: Simplify right side
    618,905.81x = 1,767,108,777,436.44
  5. Step 5: Solve for x
    x = 1,767,108,777,436.44/618,905.81
  6. Step 6: Final answer
    x = 2,855,214.38

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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.