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Finding the Third Proportional to 335,790 and 506,919

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Solution

The third proportional to 335,790 and 506,919 is: 765,260.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,790 : 506,919 = 506,919 : x
  2. Step 2: Convert to fraction form
    335,790/506,919 = 506,919/x
  3. Step 3: Cross multiply
    335,790x = 506,919 × 506,919
  4. Step 4: Simplify right side
    335,790x = 256,966,872,561
  5. Step 5: Solve for x
    x = 256,966,872,561/335,790
  6. Step 6: Final answer
    x = 765,260.65

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.