Home / 1,190,610.24-1,786,161.42-391,939.72

Finding the Fourth Proportional to 1,190,610.24, 1,786,161.42 and 391,939.72

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Solution

The fourth proportional to 1,190,610.24, 1,786,161.42 and 391,939.72 is: 587,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,610.24 : 1,786,161.42 = 391,939.72 : x
  2. Step 2: Convert to fraction form
    1,190,610.24/1,786,161.42 = 391,939.72/x
  3. Step 3: Cross multiply
    1,190,610.24x = 1,786,161.42 × 391,939.72
  4. Step 4: Simplify right side
    1,190,610.24x = 700,067,606,829.60
  5. Step 5: Solve for x
    x = 700,067,606,829.60/1,190,610.24
  6. Step 6: Final answer
    x = 587,990.58

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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.