Home / 1,190,511-1,786,025.16-391,873.68

Finding the Fourth Proportional to 1,190,511, 1,786,025.16 and 391,873.68

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Solution

The fourth proportional to 1,190,511, 1,786,025.16 and 391,873.68 is: 587,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,511 : 1,786,025.16 = 391,873.68 : x
  2. Step 2: Convert to fraction form
    1,190,511/1,786,025.16 = 391,873.68/x
  3. Step 3: Cross multiply
    1,190,511x = 1,786,025.16 × 391,873.68
  4. Step 4: Simplify right side
    1,190,511x = 699,896,252,021.79
  5. Step 5: Solve for x
    x = 699,896,252,021.79/1,190,511
  6. Step 6: Final answer
    x = 587,895.66

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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.