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Finding the Third Proportional to 356,557 and 783,089

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Solution

The third proportional to 356,557 and 783,089 is: 1,719,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,557 : 783,089 = 783,089 : x
  2. Step 2: Convert to fraction form
    356,557/783,089 = 783,089/x
  3. Step 3: Cross multiply
    356,557x = 783,089 × 783,089
  4. Step 4: Simplify right side
    356,557x = 613,228,381,921
  5. Step 5: Solve for x
    x = 613,228,381,921/356,557
  6. Step 6: Final answer
    x = 1,719,860.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.