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Finding the Fourth Proportional to 494,468.04, 682,379.36 and 279,640.24

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Solution

The fourth proportional to 494,468.04, 682,379.36 and 279,640.24 is: 385,911.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,468.04 : 682,379.36 = 279,640.24 : x
  2. Step 2: Convert to fraction form
    494,468.04/682,379.36 = 279,640.24/x
  3. Step 3: Cross multiply
    494,468.04x = 682,379.36 × 279,640.24
  4. Step 4: Simplify right side
    494,468.04x = 190,820,728,001.45
  5. Step 5: Solve for x
    x = 190,820,728,001.45/494,468.04
  6. Step 6: Final answer
    x = 385,911.15

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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.