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Finding the Fourth Proportional to 400,656.20, 600,110.94 and 200,627.72

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Solution

The fourth proportional to 400,656.20, 600,110.94 and 200,627.72 is: 300,504.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,656.20 : 600,110.94 = 200,627.72 : x
  2. Step 2: Convert to fraction form
    400,656.20/600,110.94 = 200,627.72/x
  3. Step 3: Cross multiply
    400,656.20x = 600,110.94 × 200,627.72
  4. Step 4: Simplify right side
    400,656.20x = 120,398,889,639.26
  5. Step 5: Solve for x
    x = 120,398,889,639.26/400,656.20
  6. Step 6: Final answer
    x = 300,504.25

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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.