Home / 1,190,608.25-1,786,158.41-391,937.72

Finding the Fourth Proportional to 1,190,608.25, 1,786,158.41 and 391,937.72

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Solution

The fourth proportional to 1,190,608.25, 1,786,158.41 and 391,937.72 is: 587,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,608.25 : 1,786,158.41 = 391,937.72 : x
  2. Step 2: Convert to fraction form
    1,190,608.25/1,786,158.41 = 391,937.72/x
  3. Step 3: Cross multiply
    1,190,608.25x = 1,786,158.41 × 391,937.72
  4. Step 4: Simplify right side
    1,190,608.25x = 700,062,846,823.28
  5. Step 5: Solve for x
    x = 700,062,846,823.28/1,190,608.25
  6. Step 6: Final answer
    x = 587,987.57

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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.