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Finding the Third Proportional to 387,248.50 and 843,393

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Solution

The third proportional to 387,248.50 and 843,393 is: 1,836,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,248.50 : 843,393 = 843,393 : x
  2. Step 2: Convert to fraction form
    387,248.50/843,393 = 843,393/x
  3. Step 3: Cross multiply
    387,248.50x = 843,393 × 843,393
  4. Step 4: Simplify right side
    387,248.50x = 711,311,752,449
  5. Step 5: Solve for x
    x = 711,311,752,449/387,248.50
  6. Step 6: Final answer
    x = 1,836,835.40

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.