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Finding the Fourth Proportional to 647,630.44, 893,733.90 and 361,168.66

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Solution

The fourth proportional to 647,630.44, 893,733.90 and 361,168.66 is: 498,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,630.44 : 893,733.90 = 361,168.66 : x
  2. Step 2: Convert to fraction form
    647,630.44/893,733.90 = 361,168.66/x
  3. Step 3: Cross multiply
    647,630.44x = 893,733.90 × 361,168.66
  4. Step 4: Simplify right side
    647,630.44x = 322,788,675,059.57
  5. Step 5: Solve for x
    x = 322,788,675,059.57/647,630.44
  6. Step 6: Final answer
    x = 498,414.92

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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.