Home / 1,990,138.76-2,746,361.06-1,118,974.22

Finding the Fourth Proportional to 1,990,138.76, 2,746,361.06 and 1,118,974.22

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Solution

The fourth proportional to 1,990,138.76, 2,746,361.06 and 1,118,974.22 is: 1,544,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,138.76 : 2,746,361.06 = 1,118,974.22 : x
  2. Step 2: Convert to fraction form
    1,990,138.76/2,746,361.06 = 1,118,974.22/x
  3. Step 3: Cross multiply
    1,990,138.76x = 2,746,361.06 × 1,118,974.22
  4. Step 4: Simplify right side
    1,990,138.76x = 3,073,107,224,951.87
  5. Step 5: Solve for x
    x = 3,073,107,224,951.87/1,990,138.76
  6. Step 6: Final answer
    x = 1,544,167.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.