Home / 494,136.62-681,890.64-279,272.24

Finding the Fourth Proportional to 494,136.62, 681,890.64 and 279,272.24

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Solution

The fourth proportional to 494,136.62, 681,890.64 and 279,272.24 is: 385,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,136.62 : 681,890.64 = 279,272.24 : x
  2. Step 2: Convert to fraction form
    494,136.62/681,890.64 = 279,272.24/x
  3. Step 3: Cross multiply
    494,136.62x = 681,890.64 × 279,272.24
  4. Step 4: Simplify right side
    494,136.62x = 190,433,126,467.83
  5. Step 5: Solve for x
    x = 190,433,126,467.83/494,136.62
  6. Step 6: Final answer
    x = 385,385.58

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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.