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Finding the Third Proportional to 245,642 and 520,808

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Solution

The third proportional to 245,642 and 520,808 is: 1,104,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,642 : 520,808 = 520,808 : x
  2. Step 2: Convert to fraction form
    245,642/520,808 = 520,808/x
  3. Step 3: Cross multiply
    245,642x = 520,808 × 520,808
  4. Step 4: Simplify right side
    245,642x = 271,240,972,864
  5. Step 5: Solve for x
    x = 271,240,972,864/245,642
  6. Step 6: Final answer
    x = 1,104,212.52

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.