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Finding the Third Proportional to 274,785 and 579,090

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Solution

The third proportional to 274,785 and 579,090 is: 1,220,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,785 : 579,090 = 579,090 : x
  2. Step 2: Convert to fraction form
    274,785/579,090 = 579,090/x
  3. Step 3: Cross multiply
    274,785x = 579,090 × 579,090
  4. Step 4: Simplify right side
    274,785x = 335,345,228,100
  5. Step 5: Solve for x
    x = 335,345,228,100/274,785
  6. Step 6: Final answer
    x = 1,220,391.32

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.