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Finding the Fourth Proportional to 393,786.23, 590,994.64 and 204,300.91

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Solution

The fourth proportional to 393,786.23, 590,994.64 and 204,300.91 is: 306,614.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,786.23 : 590,994.64 = 204,300.91 : x
  2. Step 2: Convert to fraction form
    393,786.23/590,994.64 = 204,300.91/x
  3. Step 3: Cross multiply
    393,786.23x = 590,994.64 × 204,300.91
  4. Step 4: Simplify right side
    393,786.23x = 120,740,742,757.12
  5. Step 5: Solve for x
    x = 120,740,742,757.12/393,786.23
  6. Step 6: Final answer
    x = 306,614.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.