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Finding the Fourth Proportional to 492,578.36, 679,744.56 and 277,716.56

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Solution

The fourth proportional to 492,578.36, 679,744.56 and 277,716.56 is: 383,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,578.36 : 679,744.56 = 277,716.56 : x
  2. Step 2: Convert to fraction form
    492,578.36/679,744.56 = 277,716.56/x
  3. Step 3: Cross multiply
    492,578.36x = 679,744.56 × 277,716.56
  4. Step 4: Simplify right side
    492,578.36x = 188,776,320,881.91
  5. Step 5: Solve for x
    x = 188,776,320,881.91/492,578.36
  6. Step 6: Final answer
    x = 383,241.20

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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.