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Finding the Fourth Proportional to 546,858.20, 820,287.30 and 491,745.80

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Solution

The fourth proportional to 546,858.20, 820,287.30 and 491,745.80 is: 737,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,858.20 : 820,287.30 = 491,745.80 : x
  2. Step 2: Convert to fraction form
    546,858.20/820,287.30 = 491,745.80/x
  3. Step 3: Cross multiply
    546,858.20x = 820,287.30 × 491,745.80
  4. Step 4: Simplify right side
    546,858.20x = 403,372,834,568.34
  5. Step 5: Solve for x
    x = 403,372,834,568.34/546,858.20
  6. Step 6: Final answer
    x = 737,618.70

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Similar ratio
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1.5x scale

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.