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Finding the Fourth Proportional to 494,691.04, 682,673.60 and 279,826.48

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Solution

The fourth proportional to 494,691.04, 682,673.60 and 279,826.48 is: 386,160.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,691.04 : 682,673.60 = 279,826.48 : x
  2. Step 2: Convert to fraction form
    494,691.04/682,673.60 = 279,826.48/x
  3. Step 3: Cross multiply
    494,691.04x = 682,673.60 × 279,826.48
  4. Step 4: Simplify right side
    494,691.04x = 191,030,150,476.93
  5. Step 5: Solve for x
    x = 191,030,150,476.93/494,691.04
  6. Step 6: Final answer
    x = 386,160.52

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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.