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Finding the Fourth Proportional to 538,295.08, 742,791.54 and 331,530.52

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Solution

The fourth proportional to 538,295.08, 742,791.54 and 331,530.52 is: 457,477.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,295.08 : 742,791.54 = 331,530.52 : x
  2. Step 2: Convert to fraction form
    538,295.08/742,791.54 = 331,530.52/x
  3. Step 3: Cross multiply
    538,295.08x = 742,791.54 × 331,530.52
  4. Step 4: Simplify right side
    538,295.08x = 246,258,065,507.80
  5. Step 5: Solve for x
    x = 246,258,065,507.80/538,295.08
  6. Step 6: Final answer
    x = 457,477.83

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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.