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Finding the Third Proportional to 411,300 and 613,557

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Solution

The third proportional to 411,300 and 613,557 is: 915,273.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,300 : 613,557 = 613,557 : x
  2. Step 2: Convert to fraction form
    411,300/613,557 = 613,557/x
  3. Step 3: Cross multiply
    411,300x = 613,557 × 613,557
  4. Step 4: Simplify right side
    411,300x = 376,452,192,249
  5. Step 5: Solve for x
    x = 376,452,192,249/411,300
  6. Step 6: Final answer
    x = 915,273.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.