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Finding the Fourth Proportional to 442,759.07, 664,222.79 and 306,556.55

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Solution

The fourth proportional to 442,759.07, 664,222.79 and 306,556.55 is: 459,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,759.07 : 664,222.79 = 306,556.55 : x
  2. Step 2: Convert to fraction form
    442,759.07/664,222.79 = 306,556.55/x
  3. Step 3: Cross multiply
    442,759.07x = 664,222.79 × 306,556.55
  4. Step 4: Simplify right side
    442,759.07x = 203,621,846,933.78
  5. Step 5: Solve for x
    x = 203,621,846,933.78/442,759.07
  6. Step 6: Final answer
    x = 459,893.12

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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.