Home / 1,198,687.45-1,798,046.76-399,969

Finding the Fourth Proportional to 1,198,687.45, 1,798,046.76 and 399,969

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Solution

The fourth proportional to 1,198,687.45, 1,798,046.76 and 399,969 is: 599,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,687.45 : 1,798,046.76 = 399,969 : x
  2. Step 2: Convert to fraction form
    1,198,687.45/1,798,046.76 = 399,969/x
  3. Step 3: Cross multiply
    1,198,687.45x = 1,798,046.76 × 399,969
  4. Step 4: Simplify right side
    1,198,687.45x = 719,162,964,550.44
  5. Step 5: Solve for x
    x = 719,162,964,550.44/1,198,687.45
  6. Step 6: Final answer
    x = 599,958.70

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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.