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Finding the Fourth Proportional to 451,541.52, 622,662.15 and 315,525.90

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Solution

The fourth proportional to 451,541.52, 622,662.15 and 315,525.90 is: 435,100.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,541.52 : 622,662.15 = 315,525.90 : x
  2. Step 2: Convert to fraction form
    451,541.52/622,662.15 = 315,525.90/x
  3. Step 3: Cross multiply
    451,541.52x = 622,662.15 × 315,525.90
  4. Step 4: Simplify right side
    451,541.52x = 196,466,035,274.69
  5. Step 5: Solve for x
    x = 196,466,035,274.69/451,541.52
  6. Step 6: Final answer
    x = 435,100.71

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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.