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Finding the Fourth Proportional to 513,339.54, 769,367.79 and 247,028.55

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Solution

The fourth proportional to 513,339.54, 769,367.79 and 247,028.55 is: 370,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,339.54 : 769,367.79 = 247,028.55 : x
  2. Step 2: Convert to fraction form
    513,339.54/769,367.79 = 247,028.55/x
  3. Step 3: Cross multiply
    513,339.54x = 769,367.79 × 247,028.55
  4. Step 4: Simplify right side
    513,339.54x = 190,055,809,580.41
  5. Step 5: Solve for x
    x = 190,055,809,580.41/513,339.54
  6. Step 6: Final answer
    x = 370,234.11

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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.