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Finding the Fourth Proportional to 547,285.80, 820,928.70 and 494,141.70

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Solution

The fourth proportional to 547,285.80, 820,928.70 and 494,141.70 is: 741,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,285.80 : 820,928.70 = 494,141.70 : x
  2. Step 2: Convert to fraction form
    547,285.80/820,928.70 = 494,141.70/x
  3. Step 3: Cross multiply
    547,285.80x = 820,928.70 × 494,141.70
  4. Step 4: Simplify right side
    547,285.80x = 405,655,103,396.79
  5. Step 5: Solve for x
    x = 405,655,103,396.79/547,285.80
  6. Step 6: Final answer
    x = 741,212.55

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Similar ratio
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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.