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Finding the Fourth Proportional to 668,629.33, 922,483.97 and 381,946.39

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Solution

The fourth proportional to 668,629.33, 922,483.97 and 381,946.39 is: 526,957.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,629.33 : 922,483.97 = 381,946.39 : x
  2. Step 2: Convert to fraction form
    668,629.33/922,483.97 = 381,946.39/x
  3. Step 3: Cross multiply
    668,629.33x = 922,483.97 × 381,946.39
  4. Step 4: Simplify right side
    668,629.33x = 352,339,419,390.73
  5. Step 5: Solve for x
    x = 352,339,419,390.73/668,629.33
  6. Step 6: Final answer
    x = 526,957.77

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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.