Home / 494,414.16-682,272.59-279,558.72

Finding the Fourth Proportional to 494,414.16, 682,272.59 and 279,558.72

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Solution

The fourth proportional to 494,414.16, 682,272.59 and 279,558.72 is: 385,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,414.16 : 682,272.59 = 279,558.72 : x
  2. Step 2: Convert to fraction form
    494,414.16/682,272.59 = 279,558.72/x
  3. Step 3: Cross multiply
    494,414.16x = 682,272.59 × 279,558.72
  4. Step 4: Simplify right side
    494,414.16x = 190,735,250,553.69
  5. Step 5: Solve for x
    x = 190,735,250,553.69/494,414.16
  6. Step 6: Final answer
    x = 385,780.32

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Double scale
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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.