Home / 2,131,349.54-3,198,285.21-784,458.14

Finding the Fourth Proportional to 2,131,349.54, 3,198,285.21 and 784,458.14

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Solution

The fourth proportional to 2,131,349.54, 3,198,285.21 and 784,458.14 is: 1,177,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,349.54 : 3,198,285.21 = 784,458.14 : x
  2. Step 2: Convert to fraction form
    2,131,349.54/3,198,285.21 = 784,458.14/x
  3. Step 3: Cross multiply
    2,131,349.54x = 3,198,285.21 × 784,458.14
  4. Step 4: Simplify right side
    2,131,349.54x = 2,508,920,867,026.11
  5. Step 5: Solve for x
    x = 2,508,920,867,026.11/2,131,349.54
  6. Step 6: Final answer
    x = 1,177,151.29

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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.