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Finding the Fourth Proportional to 492,755.96, 679,999.92 and 277,897.88

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Solution

The fourth proportional to 492,755.96, 679,999.92 and 277,897.88 is: 383,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,755.96 : 679,999.92 = 277,897.88 : x
  2. Step 2: Convert to fraction form
    492,755.96/679,999.92 = 277,897.88/x
  3. Step 3: Cross multiply
    492,755.96x = 679,999.92 × 277,897.88
  4. Step 4: Simplify right side
    492,755.96x = 188,970,536,168.17
  5. Step 5: Solve for x
    x = 188,970,536,168.17/492,755.96
  6. Step 6: Final answer
    x = 383,497.21

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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.