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Finding the Fourth Proportional to 451,072.56, 622,472.58 and 247,121.58

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Solution

The fourth proportional to 451,072.56, 622,472.58 and 247,121.58 is: 341,023.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,072.56 : 622,472.58 = 247,121.58 : x
  2. Step 2: Convert to fraction form
    451,072.56/622,472.58 = 247,121.58/x
  3. Step 3: Cross multiply
    451,072.56x = 622,472.58 × 247,121.58
  4. Step 4: Simplify right side
    451,072.56x = 153,826,407,476.28
  5. Step 5: Solve for x
    x = 153,826,407,476.28/451,072.56
  6. Step 6: Final answer
    x = 341,023.64

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1.5x scale

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.