Home / 494,291.23-682,144.64-279,440.35

Finding the Fourth Proportional to 494,291.23, 682,144.64 and 279,440.35

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Solution

The fourth proportional to 494,291.23, 682,144.64 and 279,440.35 is: 385,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,291.23 : 682,144.64 = 279,440.35 : x
  2. Step 2: Convert to fraction form
    494,291.23/682,144.64 = 279,440.35/x
  3. Step 3: Cross multiply
    494,291.23x = 682,144.64 × 279,440.35
  4. Step 4: Simplify right side
    494,291.23x = 190,618,734,897.56
  5. Step 5: Solve for x
    x = 190,618,734,897.56/494,291.23
  6. Step 6: Final answer
    x = 385,640.54

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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.