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Finding the Fourth Proportional to 647,794.68, 893,958.24 and 361,333.32

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Solution

The fourth proportional to 647,794.68, 893,958.24 and 361,333.32 is: 498,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,794.68 : 893,958.24 = 361,333.32 : x
  2. Step 2: Convert to fraction form
    647,794.68/893,958.24 = 361,333.32/x
  3. Step 3: Cross multiply
    647,794.68x = 893,958.24 × 361,333.32
  4. Step 4: Simplify right side
    647,794.68x = 323,016,898,800.56
  5. Step 5: Solve for x
    x = 323,016,898,800.56/647,794.68
  6. Step 6: Final answer
    x = 498,640.86

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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.