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Finding the Fourth Proportional to 513,940.52, 770,581.92 and 247,169.72

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Solution

The fourth proportional to 513,940.52, 770,581.92 and 247,169.72 is: 370,596.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,940.52 : 770,581.92 = 247,169.72 : x
  2. Step 2: Convert to fraction form
    513,940.52/770,581.92 = 247,169.72/x
  3. Step 3: Cross multiply
    513,940.52x = 770,581.92 × 247,169.72
  4. Step 4: Simplify right side
    513,940.52x = 190,464,517,403.46
  5. Step 5: Solve for x
    x = 190,464,517,403.46/513,940.52
  6. Step 6: Final answer
    x = 370,596.42

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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.