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Finding the Fourth Proportional to 451,182.62, 622,399.13 and 305,939.24

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Solution

The fourth proportional to 451,182.62, 622,399.13 and 305,939.24 is: 422,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,182.62 : 622,399.13 = 305,939.24 : x
  2. Step 2: Convert to fraction form
    451,182.62/622,399.13 = 305,939.24/x
  3. Step 3: Cross multiply
    451,182.62x = 622,399.13 × 305,939.24
  4. Step 4: Simplify right side
    451,182.62x = 190,416,316,093.46
  5. Step 5: Solve for x
    x = 190,416,316,093.46/451,182.62
  6. Step 6: Final answer
    x = 422,038.24

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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.