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Finding the Third Proportional to 378,766.88 and 817,625.06

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Solution

The third proportional to 378,766.88 and 817,625.06 is: 1,764,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,766.88 : 817,625.06 = 817,625.06 : x
  2. Step 2: Convert to fraction form
    378,766.88/817,625.06 = 817,625.06/x
  3. Step 3: Cross multiply
    378,766.88x = 817,625.06 × 817,625.06
  4. Step 4: Simplify right side
    378,766.88x = 668,510,742,828.13
  5. Step 5: Solve for x
    x = 668,510,742,828.13/378,766.88
  6. Step 6: Final answer
    x = 1,764,966.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.