Home / 494,280.41-682,136.38-279,440.47

Finding the Fourth Proportional to 494,280.41, 682,136.38 and 279,440.47

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Solution

The fourth proportional to 494,280.41, 682,136.38 and 279,440.47 is: 385,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,280.41 : 682,136.38 = 279,440.47 : x
  2. Step 2: Convert to fraction form
    494,280.41/682,136.38 = 279,440.47/x
  3. Step 3: Cross multiply
    494,280.41x = 682,136.38 × 279,440.47
  4. Step 4: Simplify right side
    494,280.41x = 190,616,510,631.30
  5. Step 5: Solve for x
    x = 190,616,510,631.30/494,280.41
  6. Step 6: Final answer
    x = 385,644.48

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1.5x scale

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.