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Finding the Third Proportional to 328,944.38 and 720,711

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Solution

The third proportional to 328,944.38 and 720,711 is: 1,579,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,944.38 : 720,711 = 720,711 : x
  2. Step 2: Convert to fraction form
    328,944.38/720,711 = 720,711/x
  3. Step 3: Cross multiply
    328,944.38x = 720,711 × 720,711
  4. Step 4: Simplify right side
    328,944.38x = 519,424,345,521
  5. Step 5: Solve for x
    x = 519,424,345,521/328,944.38
  6. Step 6: Final answer
    x = 1,579,064.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.