Home / 2,091,235.78-3,136,884.66-811,917.34

Finding the Fourth Proportional to 2,091,235.78, 3,136,884.66 and 811,917.34

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Solution

The fourth proportional to 2,091,235.78, 3,136,884.66 and 811,917.34 is: 1,217,888.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091,235.78 : 3,136,884.66 = 811,917.34 : x
  2. Step 2: Convert to fraction form
    2,091,235.78/3,136,884.66 = 811,917.34/x
  3. Step 3: Cross multiply
    2,091,235.78x = 3,136,884.66 × 811,917.34
  4. Step 4: Simplify right side
    2,091,235.78x = 2,546,891,049,034.00
  5. Step 5: Solve for x
    x = 2,546,891,049,034.00/2,091,235.78
  6. Step 6: Final answer
    x = 1,217,888.04

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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.