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Finding the Third Proportional to 261,786 and 565,348

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Solution

The third proportional to 261,786 and 565,348 is: 1,220,914.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,786 : 565,348 = 565,348 : x
  2. Step 2: Convert to fraction form
    261,786/565,348 = 565,348/x
  3. Step 3: Cross multiply
    261,786x = 565,348 × 565,348
  4. Step 4: Simplify right side
    261,786x = 319,618,361,104
  5. Step 5: Solve for x
    x = 319,618,361,104/261,786
  6. Step 6: Final answer
    x = 1,220,914.64

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.