Home / 494,586.46-682,278.15-312,992.38

Finding the Fourth Proportional to 494,586.46, 682,278.15 and 312,992.38

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Solution

The fourth proportional to 494,586.46, 682,278.15 and 312,992.38 is: 431,770.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,586.46 : 682,278.15 = 312,992.38 : x
  2. Step 2: Convert to fraction form
    494,586.46/682,278.15 = 312,992.38/x
  3. Step 3: Cross multiply
    494,586.46x = 682,278.15 × 312,992.38
  4. Step 4: Simplify right side
    494,586.46x = 213,547,861,990.50
  5. Step 5: Solve for x
    x = 213,547,861,990.50/494,586.46
  6. Step 6: Final answer
    x = 431,770.54

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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.