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Finding the Fourth Proportional to 700,696.32, 966,905.76 and 394,756

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Solution

The fourth proportional to 700,696.32, 966,905.76 and 394,756 is: 544,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,696.32 : 966,905.76 = 394,756 : x
  2. Step 2: Convert to fraction form
    700,696.32/966,905.76 = 394,756/x
  3. Step 3: Cross multiply
    700,696.32x = 966,905.76 × 394,756
  4. Step 4: Simplify right side
    700,696.32x = 381,691,850,194.56
  5. Step 5: Solve for x
    x = 381,691,850,194.56/700,696.32
  6. Step 6: Final answer
    x = 544,732.20

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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.