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Finding the Fourth Proportional to 490,293.71, 733,858.61 and 253,310.39

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Solution

The fourth proportional to 490,293.71, 733,858.61 and 253,310.39 is: 379,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,293.71 : 733,858.61 = 253,310.39 : x
  2. Step 2: Convert to fraction form
    490,293.71/733,858.61 = 253,310.39/x
  3. Step 3: Cross multiply
    490,293.71x = 733,858.61 × 253,310.39
  4. Step 4: Simplify right side
    490,293.71x = 185,894,007,667.94
  5. Step 5: Solve for x
    x = 185,894,007,667.94/490,293.71
  6. Step 6: Final answer
    x = 379,148.27

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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.