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Finding the Fourth Proportional to 487,951.92, 673,293.57 and 306,535.41

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Solution

The fourth proportional to 487,951.92, 673,293.57 and 306,535.41 is: 422,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,951.92 : 673,293.57 = 306,535.41 : x
  2. Step 2: Convert to fraction form
    487,951.92/673,293.57 = 306,535.41/x
  3. Step 3: Cross multiply
    487,951.92x = 673,293.57 × 306,535.41
  4. Step 4: Simplify right side
    487,951.92x = 206,388,321,274.44
  5. Step 5: Solve for x
    x = 206,388,321,274.44/487,951.92
  6. Step 6: Final answer
    x = 422,968.56

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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.