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Finding the Fourth Proportional to 492,754.96, 679,998.54 and 277,896.88

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Solution

The fourth proportional to 492,754.96, 679,998.54 and 277,896.88 is: 383,495.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,754.96 : 679,998.54 = 277,896.88 : x
  2. Step 2: Convert to fraction form
    492,754.96/679,998.54 = 277,896.88/x
  3. Step 3: Cross multiply
    492,754.96x = 679,998.54 × 277,896.88
  4. Step 4: Simplify right side
    492,754.96x = 188,969,472,670.56
  5. Step 5: Solve for x
    x = 188,969,472,670.56/492,754.96
  6. Step 6: Final answer
    x = 383,495.83

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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.