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Finding the Third Proportional to 505,828 and 1,058,420

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Solution

The third proportional to 505,828 and 1,058,420 is: 2,214,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,828 : 1,058,420 = 1,058,420 : x
  2. Step 2: Convert to fraction form
    505,828/1,058,420 = 1,058,420/x
  3. Step 3: Cross multiply
    505,828x = 1,058,420 × 1,058,420
  4. Step 4: Simplify right side
    505,828x = 1,120,252,896,400
  5. Step 5: Solve for x
    x = 1,120,252,896,400/505,828
  6. Step 6: Final answer
    x = 2,214,691.35

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.