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Finding the Third Proportional to 262,844 and 411,786

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Solution

The third proportional to 262,844 and 411,786 is: 645,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,844 : 411,786 = 411,786 : x
  2. Step 2: Convert to fraction form
    262,844/411,786 = 411,786/x
  3. Step 3: Cross multiply
    262,844x = 411,786 × 411,786
  4. Step 4: Simplify right side
    262,844x = 169,567,709,796
  5. Step 5: Solve for x
    x = 169,567,709,796/262,844
  6. Step 6: Final answer
    x = 645,126.80

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.