Home / 2,190,175.68-3,022,410.60-1,223,319.72

Finding the Fourth Proportional to 2,190,175.68, 3,022,410.60 and 1,223,319.72

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Solution

The fourth proportional to 2,190,175.68, 3,022,410.60 and 1,223,319.72 is: 1,688,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,175.68 : 3,022,410.60 = 1,223,319.72 : x
  2. Step 2: Convert to fraction form
    2,190,175.68/3,022,410.60 = 1,223,319.72/x
  3. Step 3: Cross multiply
    2,190,175.68x = 3,022,410.60 × 1,223,319.72
  4. Step 4: Simplify right side
    2,190,175.68x = 3,697,374,488,917.03
  5. Step 5: Solve for x
    x = 3,697,374,488,917.03/2,190,175.68
  6. Step 6: Final answer
    x = 1,688,163.43

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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.