Home / 1,921,004.12-2,874,821.57-1,191,186.19

Finding the Fourth Proportional to 1,921,004.12, 2,874,821.57 and 1,191,186.19

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Solution

The fourth proportional to 1,921,004.12, 2,874,821.57 and 1,191,186.19 is: 1,782,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,004.12 : 2,874,821.57 = 1,191,186.19 : x
  2. Step 2: Convert to fraction form
    1,921,004.12/2,874,821.57 = 1,191,186.19/x
  3. Step 3: Cross multiply
    1,921,004.12x = 2,874,821.57 × 1,191,186.19
  4. Step 4: Simplify right side
    1,921,004.12x = 3,424,447,745,532.21
  5. Step 5: Solve for x
    x = 3,424,447,745,532.21/1,921,004.12
  6. Step 6: Final answer
    x = 1,782,634.26

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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.