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Finding the Fourth Proportional to 547,231.20, 820,846.80 and 494,743.20

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Solution

The fourth proportional to 547,231.20, 820,846.80 and 494,743.20 is: 742,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,231.20 : 820,846.80 = 494,743.20 : x
  2. Step 2: Convert to fraction form
    547,231.20/820,846.80 = 494,743.20/x
  3. Step 3: Cross multiply
    547,231.20x = 820,846.80 × 494,743.20
  4. Step 4: Simplify right side
    547,231.20x = 406,108,372,541.76
  5. Step 5: Solve for x
    x = 406,108,372,541.76/547,231.20
  6. Step 6: Final answer
    x = 742,114.80

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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.