Home / 1,921,005.62-2,874,823.82-1,191,187.69

Finding the Fourth Proportional to 1,921,005.62, 2,874,823.82 and 1,191,187.69

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Solution

The fourth proportional to 1,921,005.62, 2,874,823.82 and 1,191,187.69 is: 1,782,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,005.62 : 2,874,823.82 = 1,191,187.69 : x
  2. Step 2: Convert to fraction form
    1,921,005.62/2,874,823.82 = 1,191,187.69/x
  3. Step 3: Cross multiply
    1,921,005.62x = 2,874,823.82 × 1,191,187.69
  4. Step 4: Simplify right side
    1,921,005.62x = 3,424,454,745,302.78
  5. Step 5: Solve for x
    x = 3,424,454,745,302.78/1,921,005.62
  6. Step 6: Final answer
    x = 1,782,636.51

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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.