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Finding the Third Proportional to 335,993 and 520,239

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Solution

The third proportional to 335,993 and 520,239 is: 805,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,993 : 520,239 = 520,239 : x
  2. Step 2: Convert to fraction form
    335,993/520,239 = 520,239/x
  3. Step 3: Cross multiply
    335,993x = 520,239 × 520,239
  4. Step 4: Simplify right side
    335,993x = 270,648,617,121
  5. Step 5: Solve for x
    x = 270,648,617,121/335,993
  6. Step 6: Final answer
    x = 805,518.62

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.