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Finding the Fourth Proportional to 551,896.20, 827,844.30 and 509,905.80

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Solution

The fourth proportional to 551,896.20, 827,844.30 and 509,905.80 is: 764,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,896.20 : 827,844.30 = 509,905.80 : x
  2. Step 2: Convert to fraction form
    551,896.20/827,844.30 = 509,905.80/x
  3. Step 3: Cross multiply
    551,896.20x = 827,844.30 × 509,905.80
  4. Step 4: Simplify right side
    551,896.20x = 422,122,610,066.94
  5. Step 5: Solve for x
    x = 422,122,610,066.94/551,896.20
  6. Step 6: Final answer
    x = 764,858.70

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Double scale
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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.