Home / 1,331,879.44-1,998,118.32-385,323.70

Finding the Fourth Proportional to 1,331,879.44, 1,998,118.32 and 385,323.70

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Solution

The fourth proportional to 1,331,879.44, 1,998,118.32 and 385,323.70 is: 578,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,879.44 : 1,998,118.32 = 385,323.70 : x
  2. Step 2: Convert to fraction form
    1,331,879.44/1,998,118.32 = 385,323.70/x
  3. Step 3: Cross multiply
    1,331,879.44x = 1,998,118.32 × 385,323.70
  4. Step 4: Simplify right side
    1,331,879.44x = 769,922,344,100.18
  5. Step 5: Solve for x
    x = 769,922,344,100.18/1,331,879.44
  6. Step 6: Final answer
    x = 578,072.10

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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.