Home / 1,211,115.27-1,671,331.26-667,238.49

Finding the Fourth Proportional to 1,211,115.27, 1,671,331.26 and 667,238.49

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Solution

The fourth proportional to 1,211,115.27, 1,671,331.26 and 667,238.49 is: 920,784.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,115.27 : 1,671,331.26 = 667,238.49 : x
  2. Step 2: Convert to fraction form
    1,211,115.27/1,671,331.26 = 667,238.49/x
  3. Step 3: Cross multiply
    1,211,115.27x = 1,671,331.26 × 667,238.49
  4. Step 4: Simplify right side
    1,211,115.27x = 1,115,176,546,212.20
  5. Step 5: Solve for x
    x = 1,115,176,546,212.20/1,211,115.27
  6. Step 6: Final answer
    x = 920,784.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.