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Finding the Fourth Proportional to 419,322.60, 628,983.90 and 366,834.60

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Solution

The fourth proportional to 419,322.60, 628,983.90 and 366,834.60 is: 550,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,322.60 : 628,983.90 = 366,834.60 : x
  2. Step 2: Convert to fraction form
    419,322.60/628,983.90 = 366,834.60/x
  3. Step 3: Cross multiply
    419,322.60x = 628,983.90 × 366,834.60
  4. Step 4: Simplify right side
    419,322.60x = 230,733,057,362.94
  5. Step 5: Solve for x
    x = 230,733,057,362.94/419,322.60
  6. Step 6: Final answer
    x = 550,251.90

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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.