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Finding the Fourth Proportional to 494,407.73, 682,296.11 and 279,579.94

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Solution

The fourth proportional to 494,407.73, 682,296.11 and 279,579.94 is: 385,827.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,407.73 : 682,296.11 = 279,579.94 : x
  2. Step 2: Convert to fraction form
    494,407.73/682,296.11 = 279,579.94/x
  3. Step 3: Cross multiply
    494,407.73x = 682,296.11 × 279,579.94
  4. Step 4: Simplify right side
    494,407.73x = 190,756,303,440.82
  5. Step 5: Solve for x
    x = 190,756,303,440.82/494,407.73
  6. Step 6: Final answer
    x = 385,827.91

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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.