Home / 2,158,087.22-2,978,160.66-1,191,217.72

Finding the Fourth Proportional to 2,158,087.22, 2,978,160.66 and 1,191,217.72

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Solution

The fourth proportional to 2,158,087.22, 2,978,160.66 and 1,191,217.72 is: 1,643,880.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,087.22 : 2,978,160.66 = 1,191,217.72 : x
  2. Step 2: Convert to fraction form
    2,158,087.22/2,978,160.66 = 1,191,217.72/x
  3. Step 3: Cross multiply
    2,158,087.22x = 2,978,160.66 × 1,191,217.72
  4. Step 4: Simplify right side
    2,158,087.22x = 3,547,637,751,198.90
  5. Step 5: Solve for x
    x = 3,547,637,751,198.90/2,158,087.22
  6. Step 6: Final answer
    x = 1,643,880.62

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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.