Home / 2,664,662.62-3,996,956.79-642,889.57

Finding the Fourth Proportional to 2,664,662.62, 3,996,956.79 and 642,889.57

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Solution

The fourth proportional to 2,664,662.62, 3,996,956.79 and 642,889.57 is: 964,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664,662.62 : 3,996,956.79 = 642,889.57 : x
  2. Step 2: Convert to fraction form
    2,664,662.62/3,996,956.79 = 642,889.57/x
  3. Step 3: Cross multiply
    2,664,662.62x = 3,996,956.79 × 642,889.57
  4. Step 4: Simplify right side
    2,664,662.62x = 2,569,601,812,046.90
  5. Step 5: Solve for x
    x = 2,569,601,812,046.90/2,664,662.62
  6. Step 6: Final answer
    x = 964,325.39

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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.