Home / 547,641.20-755,741.27-305,921.66

Finding the Fourth Proportional to 547,641.20, 755,741.27 and 305,921.66

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Solution

The fourth proportional to 547,641.20, 755,741.27 and 305,921.66 is: 422,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,641.20 : 755,741.27 = 305,921.66 : x
  2. Step 2: Convert to fraction form
    547,641.20/755,741.27 = 305,921.66/x
  3. Step 3: Cross multiply
    547,641.20x = 755,741.27 × 305,921.66
  4. Step 4: Simplify right side
    547,641.20x = 231,197,620,835.01
  5. Step 5: Solve for x
    x = 231,197,620,835.01/547,641.20
  6. Step 6: Final answer
    x = 422,169.88

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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.