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Finding the Fourth Proportional to 417,791.37, 576,491.27 and 238,908.81

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Solution

The fourth proportional to 417,791.37, 576,491.27 and 238,908.81 is: 329,659.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,791.37 : 576,491.27 = 238,908.81 : x
  2. Step 2: Convert to fraction form
    417,791.37/576,491.27 = 238,908.81/x
  3. Step 3: Cross multiply
    417,791.37x = 576,491.27 × 238,908.81
  4. Step 4: Simplify right side
    417,791.37x = 137,728,842,096.55
  5. Step 5: Solve for x
    x = 137,728,842,096.55/417,791.37
  6. Step 6: Final answer
    x = 329,659.38

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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.