Home / 494,319.40-682,134.27-279,446.65

Finding the Fourth Proportional to 494,319.40, 682,134.27 and 279,446.65

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Solution

The fourth proportional to 494,319.40, 682,134.27 and 279,446.65 is: 385,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,319.40 : 682,134.27 = 279,446.65 : x
  2. Step 2: Convert to fraction form
    494,319.40/682,134.27 = 279,446.65/x
  3. Step 3: Cross multiply
    494,319.40x = 682,134.27 × 279,446.65
  4. Step 4: Simplify right side
    494,319.40x = 190,620,136,601.70
  5. Step 5: Solve for x
    x = 190,620,136,601.70/494,319.40
  6. Step 6: Final answer
    x = 385,621.39

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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.