Home / 494,318.40-682,132.89-279,445.65

Finding the Fourth Proportional to 494,318.40, 682,132.89 and 279,445.65

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Solution

The fourth proportional to 494,318.40, 682,132.89 and 279,445.65 is: 385,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,318.40 : 682,132.89 = 279,445.65 : x
  2. Step 2: Convert to fraction form
    494,318.40/682,132.89 = 279,445.65/x
  3. Step 3: Cross multiply
    494,318.40x = 682,132.89 × 279,445.65
  4. Step 4: Simplify right side
    494,318.40x = 190,619,068,832.43
  5. Step 5: Solve for x
    x = 190,619,068,832.43/494,318.40
  6. Step 6: Final answer
    x = 385,620.02

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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.