Home / 1,190,610.12-1,786,161.23-391,939.59

Finding the Fourth Proportional to 1,190,610.12, 1,786,161.23 and 391,939.59

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Solution

The fourth proportional to 1,190,610.12, 1,786,161.23 and 391,939.59 is: 587,990.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,610.12 : 1,786,161.23 = 391,939.59 : x
  2. Step 2: Convert to fraction form
    1,190,610.12/1,786,161.23 = 391,939.59/x
  3. Step 3: Cross multiply
    1,190,610.12x = 1,786,161.23 × 391,939.59
  4. Step 4: Simplify right side
    1,190,610.12x = 700,067,298,200.40
  5. Step 5: Solve for x
    x = 700,067,298,200.40/1,190,610.12
  6. Step 6: Final answer
    x = 587,990.38

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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.