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Finding the Third Proportional to 248,642 and 542,828

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Solution

The third proportional to 248,642 and 542,828 is: 1,185,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,642 : 542,828 = 542,828 : x
  2. Step 2: Convert to fraction form
    248,642/542,828 = 542,828/x
  3. Step 3: Cross multiply
    248,642x = 542,828 × 542,828
  4. Step 4: Simplify right side
    248,642x = 294,662,237,584
  5. Step 5: Solve for x
    x = 294,662,237,584/248,642
  6. Step 6: Final answer
    x = 1,185,086.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.