Home / 1,318,336.70-1,976,850.77-419,661.54

Finding the Fourth Proportional to 1,318,336.70, 1,976,850.77 and 419,661.54

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Solution

The fourth proportional to 1,318,336.70, 1,976,850.77 and 419,661.54 is: 629,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,336.70 : 1,976,850.77 = 419,661.54 : x
  2. Step 2: Convert to fraction form
    1,318,336.70/1,976,850.77 = 419,661.54/x
  3. Step 3: Cross multiply
    1,318,336.70x = 1,976,850.77 × 419,661.54
  4. Step 4: Simplify right side
    1,318,336.70x = 829,608,236,390.08
  5. Step 5: Solve for x
    x = 829,608,236,390.08/1,318,336.70
  6. Step 6: Final answer
    x = 629,284.04

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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.