Home / 547,642.20-755,742.65-305,922.66

Finding the Fourth Proportional to 547,642.20, 755,742.65 and 305,922.66

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Solution

The fourth proportional to 547,642.20, 755,742.65 and 305,922.66 is: 422,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,642.20 : 755,742.65 = 305,922.66 : x
  2. Step 2: Convert to fraction form
    547,642.20/755,742.65 = 305,922.66/x
  3. Step 3: Cross multiply
    547,642.20x = 755,742.65 × 305,922.66
  4. Step 4: Simplify right side
    547,642.20x = 231,198,801,763.45
  5. Step 5: Solve for x
    x = 231,198,801,763.45/547,642.20
  6. Step 6: Final answer
    x = 422,171.27

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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.