Home / 445,930.80-668,896.20-268,983.60

Finding the Fourth Proportional to 445,930.80, 668,896.20 and 268,983.60

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Solution

The fourth proportional to 445,930.80, 668,896.20 and 268,983.60 is: 403,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,930.80 : 668,896.20 = 268,983.60 : x
  2. Step 2: Convert to fraction form
    445,930.80/668,896.20 = 268,983.60/x
  3. Step 3: Cross multiply
    445,930.80x = 668,896.20 × 268,983.60
  4. Step 4: Simplify right side
    445,930.80x = 179,922,107,902.32
  5. Step 5: Solve for x
    x = 179,922,107,902.32/445,930.80
  6. Step 6: Final answer
    x = 403,475.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.