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Finding the Fourth Proportional to 419,104.77, 628,680.39 and 119,562.32

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Solution

The fourth proportional to 419,104.77, 628,680.39 and 119,562.32 is: 179,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,104.77 : 628,680.39 = 119,562.32 : x
  2. Step 2: Convert to fraction form
    419,104.77/628,680.39 = 119,562.32/x
  3. Step 3: Cross multiply
    419,104.77x = 628,680.39 × 119,562.32
  4. Step 4: Simplify right side
    419,104.77x = 75,166,485,966.90
  5. Step 5: Solve for x
    x = 75,166,485,966.90/419,104.77
  6. Step 6: Final answer
    x = 179,350.11

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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.