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Finding the Fourth Proportional to 546,796.20, 820,194.30 and 378,506.55

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Solution

The fourth proportional to 546,796.20, 820,194.30 and 378,506.55 is: 567,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,796.20 : 820,194.30 = 378,506.55 : x
  2. Step 2: Convert to fraction form
    546,796.20/820,194.30 = 378,506.55/x
  3. Step 3: Cross multiply
    546,796.20x = 820,194.30 × 378,506.55
  4. Step 4: Simplify right side
    546,796.20x = 310,448,914,822.67
  5. Step 5: Solve for x
    x = 310,448,914,822.67/546,796.20
  6. Step 6: Final answer
    x = 567,759.83

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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.