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Finding the Fourth Proportional to 647,169.54, 970,783.47 and 247,706.70

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Solution

The fourth proportional to 647,169.54, 970,783.47 and 247,706.70 is: 371,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,169.54 : 970,783.47 = 247,706.70 : x
  2. Step 2: Convert to fraction form
    647,169.54/970,783.47 = 247,706.70/x
  3. Step 3: Cross multiply
    647,169.54x = 970,783.47 × 247,706.70
  4. Step 4: Simplify right side
    647,169.54x = 240,469,563,675.80
  5. Step 5: Solve for x
    x = 240,469,563,675.80/647,169.54
  6. Step 6: Final answer
    x = 371,571.20

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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.