Home / 1,190,918.76-1,786,375.44-516,912.72

Finding the Fourth Proportional to 1,190,918.76, 1,786,375.44 and 516,912.72

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Solution

The fourth proportional to 1,190,918.76, 1,786,375.44 and 516,912.72 is: 775,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,918.76 : 1,786,375.44 = 516,912.72 : x
  2. Step 2: Convert to fraction form
    1,190,918.76/1,786,375.44 = 516,912.72/x
  3. Step 3: Cross multiply
    1,190,918.76x = 1,786,375.44 × 516,912.72
  4. Step 4: Simplify right side
    1,190,918.76x = 923,400,187,631.60
  5. Step 5: Solve for x
    x = 923,400,187,631.60/1,190,918.76
  6. Step 6: Final answer
    x = 775,367.91

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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.