Home / 1,211,777.30-1,672,243.42-667,914.14

Finding the Fourth Proportional to 1,211,777.30, 1,672,243.42 and 667,914.14

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Solution

The fourth proportional to 1,211,777.30, 1,672,243.42 and 667,914.14 is: 921,716.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,777.30 : 1,672,243.42 = 667,914.14 : x
  2. Step 2: Convert to fraction form
    1,211,777.30/1,672,243.42 = 667,914.14/x
  3. Step 3: Cross multiply
    1,211,777.30x = 1,672,243.42 × 667,914.14
  4. Step 4: Simplify right side
    1,211,777.30x = 1,116,915,025,739.96
  5. Step 5: Solve for x
    x = 1,116,915,025,739.96/1,211,777.30
  6. Step 6: Final answer
    x = 921,716.41

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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.