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Finding the Fourth Proportional to 550,163.40, 825,245.10 and 546,664.20

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Solution

The fourth proportional to 550,163.40, 825,245.10 and 546,664.20 is: 819,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,163.40 : 825,245.10 = 546,664.20 : x
  2. Step 2: Convert to fraction form
    550,163.40/825,245.10 = 546,664.20/x
  3. Step 3: Cross multiply
    550,163.40x = 825,245.10 × 546,664.20
  4. Step 4: Simplify right side
    550,163.40x = 451,131,952,395.42
  5. Step 5: Solve for x
    x = 451,131,952,395.42/550,163.40
  6. Step 6: Final answer
    x = 819,996.30

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Double scale
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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.