Home / 538,050.87-742,455.25-331,286.42

Finding the Fourth Proportional to 538,050.87, 742,455.25 and 331,286.42

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Solution

The fourth proportional to 538,050.87, 742,455.25 and 331,286.42 is: 457,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,050.87 : 742,455.25 = 331,286.42 : x
  2. Step 2: Convert to fraction form
    538,050.87/742,455.25 = 331,286.42/x
  3. Step 3: Cross multiply
    538,050.87x = 742,455.25 × 331,286.42
  4. Step 4: Simplify right side
    538,050.87x = 245,965,341,782.71
  5. Step 5: Solve for x
    x = 245,965,341,782.71/538,050.87
  6. Step 6: Final answer
    x = 457,141.43

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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.