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Finding the Fourth Proportional to 547,352.79, 820,693.85 and 192,407.55

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Solution

The fourth proportional to 547,352.79, 820,693.85 and 192,407.55 is: 288,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,352.79 : 820,693.85 = 192,407.55 : x
  2. Step 2: Convert to fraction form
    547,352.79/820,693.85 = 192,407.55/x
  3. Step 3: Cross multiply
    547,352.79x = 820,693.85 × 192,407.55
  4. Step 4: Simplify right side
    547,352.79x = 157,907,692,016.53
  5. Step 5: Solve for x
    x = 157,907,692,016.53/547,352.79
  6. Step 6: Final answer
    x = 288,493.44

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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.