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Finding the Fourth Proportional to 494,329.34, 682,170.58 and 279,511.68

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Solution

The fourth proportional to 494,329.34, 682,170.58 and 279,511.68 is: 385,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,329.34 : 682,170.58 = 279,511.68 : x
  2. Step 2: Convert to fraction form
    494,329.34/682,170.58 = 279,511.68/x
  3. Step 3: Cross multiply
    494,329.34x = 682,170.58 × 279,511.68
  4. Step 4: Simplify right side
    494,329.34x = 190,674,644,862.37
  5. Step 5: Solve for x
    x = 190,674,644,862.37/494,329.34
  6. Step 6: Final answer
    x = 385,723.91

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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.