Home / 1,190,611.26-1,786,162.92-391,940.72

Finding the Fourth Proportional to 1,190,611.26, 1,786,162.92 and 391,940.72

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Solution

The fourth proportional to 1,190,611.26, 1,786,162.92 and 391,940.72 is: 587,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,611.26 : 1,786,162.92 = 391,940.72 : x
  2. Step 2: Convert to fraction form
    1,190,611.26/1,786,162.92 = 391,940.72/x
  3. Step 3: Cross multiply
    1,190,611.26x = 1,786,162.92 × 391,940.72
  4. Step 4: Simplify right side
    1,190,611.26x = 700,069,980,902.10
  5. Step 5: Solve for x
    x = 700,069,980,902.10/1,190,611.26
  6. Step 6: Final answer
    x = 587,992.07

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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.