Home / 494,585.46-682,276.77-312,991.38

Finding the Fourth Proportional to 494,585.46, 682,276.77 and 312,991.38

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Solution

The fourth proportional to 494,585.46, 682,276.77 and 312,991.38 is: 431,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,585.46 : 682,276.77 = 312,991.38 : x
  2. Step 2: Convert to fraction form
    494,585.46/682,276.77 = 312,991.38/x
  3. Step 3: Cross multiply
    494,585.46x = 682,276.77 × 312,991.38
  4. Step 4: Simplify right side
    494,585.46x = 213,546,747,784.24
  5. Step 5: Solve for x
    x = 213,546,747,784.24/494,585.46
  6. Step 6: Final answer
    x = 431,769.16

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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.