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Finding the Fourth Proportional to 492,753.96, 679,997.16 and 277,895.88

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Solution

The fourth proportional to 492,753.96, 679,997.16 and 277,895.88 is: 383,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,753.96 : 679,997.16 = 277,895.88 : x
  2. Step 2: Convert to fraction form
    492,753.96/679,997.16 = 277,895.88/x
  3. Step 3: Cross multiply
    492,753.96x = 679,997.16 × 277,895.88
  4. Step 4: Simplify right side
    492,753.96x = 188,968,409,175.70
  5. Step 5: Solve for x
    x = 188,968,409,175.70/492,753.96
  6. Step 6: Final answer
    x = 383,494.45

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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.