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Finding the Fourth Proportional to 491,749.44, 678,542.04 and 276,846.72

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Solution

The fourth proportional to 491,749.44, 678,542.04 and 276,846.72 is: 382,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,749.44 : 678,542.04 = 276,846.72 : x
  2. Step 2: Convert to fraction form
    491,749.44/678,542.04 = 276,846.72/x
  3. Step 3: Cross multiply
    491,749.44x = 678,542.04 × 276,846.72
  4. Step 4: Simplify right side
    491,749.44x = 187,852,138,156.11
  5. Step 5: Solve for x
    x = 187,852,138,156.11/491,749.44
  6. Step 6: Final answer
    x = 382,007.83

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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.