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Finding the Fourth Proportional to 647,629.44, 893,732.56 and 361,167.68

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Solution

The fourth proportional to 647,629.44, 893,732.56 and 361,167.68 is: 498,413.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,629.44 : 893,732.56 = 361,167.68 : x
  2. Step 2: Convert to fraction form
    647,629.44/893,732.56 = 361,167.68/x
  3. Step 3: Cross multiply
    647,629.44x = 893,732.56 × 361,167.68
  4. Step 4: Simplify right side
    647,629.44x = 322,787,315,235.66
  5. Step 5: Solve for x
    x = 322,787,315,235.66/647,629.44
  6. Step 6: Final answer
    x = 498,413.59

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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.