Home / 492,007.62-678,949.50-274,204.70

Finding the Fourth Proportional to 492,007.62, 678,949.50 and 274,204.70

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Solution

The fourth proportional to 492,007.62, 678,949.50 and 274,204.70 is: 378,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,007.62 : 678,949.50 = 274,204.70 : x
  2. Step 2: Convert to fraction form
    492,007.62/678,949.50 = 274,204.70/x
  3. Step 3: Cross multiply
    492,007.62x = 678,949.50 × 274,204.70
  4. Step 4: Simplify right side
    492,007.62x = 186,171,143,962.65
  5. Step 5: Solve for x
    x = 186,171,143,962.65/492,007.62
  6. Step 6: Final answer
    x = 378,390.77

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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.