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Finding the Third Proportional to 261,690 and 564,828

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Solution

The third proportional to 261,690 and 564,828 is: 1,219,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,690 : 564,828 = 564,828 : x
  2. Step 2: Convert to fraction form
    261,690/564,828 = 564,828/x
  3. Step 3: Cross multiply
    261,690x = 564,828 × 564,828
  4. Step 4: Simplify right side
    261,690x = 319,030,669,584
  5. Step 5: Solve for x
    x = 319,030,669,584/261,690
  6. Step 6: Final answer
    x = 1,219,116.78

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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.