Home / 1,821,121.80-2,731,682.70-1,640,718.60

Finding the Fourth Proportional to 1,821,121.80, 2,731,682.70 and 1,640,718.60

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Solution

The fourth proportional to 1,821,121.80, 2,731,682.70 and 1,640,718.60 is: 2,461,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,121.80 : 2,731,682.70 = 1,640,718.60 : x
  2. Step 2: Convert to fraction form
    1,821,121.80/2,731,682.70 = 1,640,718.60/x
  3. Step 3: Cross multiply
    1,821,121.80x = 2,731,682.70 × 1,640,718.60
  4. Step 4: Simplify right side
    1,821,121.80x = 4,481,922,615,188.22
  5. Step 5: Solve for x
    x = 4,481,922,615,188.22/1,821,121.80
  6. Step 6: Final answer
    x = 2,461,077.90

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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.