Home / 498,435.78-743,839.32-445,247.94

Finding the Fourth Proportional to 498,435.78, 743,839.32 and 445,247.94

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Solution

The fourth proportional to 498,435.78, 743,839.32 and 445,247.94 is: 664,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,435.78 : 743,839.32 = 445,247.94 : x
  2. Step 2: Convert to fraction form
    498,435.78/743,839.32 = 445,247.94/x
  3. Step 3: Cross multiply
    498,435.78x = 743,839.32 × 445,247.94
  4. Step 4: Simplify right side
    498,435.78x = 331,192,922,694.76
  5. Step 5: Solve for x
    x = 331,192,922,694.76/498,435.78
  6. Step 6: Final answer
    x = 664,464.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.