Home / 393,926.42-590,926.79-305,279.21

Finding the Fourth Proportional to 393,926.42, 590,926.79 and 305,279.21

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Solution

The fourth proportional to 393,926.42, 590,926.79 and 305,279.21 is: 457,947.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,926.42 : 590,926.79 = 305,279.21 : x
  2. Step 2: Convert to fraction form
    393,926.42/590,926.79 = 305,279.21/x
  3. Step 3: Cross multiply
    393,926.42x = 590,926.79 × 305,279.21
  4. Step 4: Simplify right side
    393,926.42x = 180,397,665,859.55
  5. Step 5: Solve for x
    x = 180,397,665,859.55/393,926.42
  6. Step 6: Final answer
    x = 457,947.62

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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.