Home / 1,399,550.83-2,099,210.74-388,696.54

Finding the Fourth Proportional to 1,399,550.83, 2,099,210.74 and 388,696.54

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Solution

The fourth proportional to 1,399,550.83, 2,099,210.74 and 388,696.54 is: 583,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,550.83 : 2,099,210.74 = 388,696.54 : x
  2. Step 2: Convert to fraction form
    1,399,550.83/2,099,210.74 = 388,696.54/x
  3. Step 3: Cross multiply
    1,399,550.83x = 2,099,210.74 × 388,696.54
  4. Step 4: Simplify right side
    1,399,550.83x = 815,955,942,962.05
  5. Step 5: Solve for x
    x = 815,955,942,962.05/1,399,550.83
  6. Step 6: Final answer
    x = 583,012.72

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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.