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Finding the Fourth Proportional to 551,998.40, 827,997.60 and 536,446.40

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Solution

The fourth proportional to 551,998.40, 827,997.60 and 536,446.40 is: 804,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,998.40 : 827,997.60 = 536,446.40 : x
  2. Step 2: Convert to fraction form
    551,998.40/827,997.60 = 536,446.40/x
  3. Step 3: Cross multiply
    551,998.40x = 827,997.60 × 536,446.40
  4. Step 4: Simplify right side
    551,998.40x = 444,176,331,728.64
  5. Step 5: Solve for x
    x = 444,176,331,728.64/551,998.40
  6. Step 6: Final answer
    x = 804,669.60

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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.