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Finding the Fourth Proportional to 494,327.34, 682,167.83 and 279,509.67

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Solution

The fourth proportional to 494,327.34, 682,167.83 and 279,509.67 is: 385,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,327.34 : 682,167.83 = 279,509.67 : x
  2. Step 2: Convert to fraction form
    494,327.34/682,167.83 = 279,509.67/x
  3. Step 3: Cross multiply
    494,327.34x = 682,167.83 × 279,509.67
  4. Step 4: Simplify right side
    494,327.34x = 190,672,503,650.37
  5. Step 5: Solve for x
    x = 190,672,503,650.37/494,327.34
  6. Step 6: Final answer
    x = 385,721.14

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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.