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Finding the Fourth Proportional to 617,137.74, 925,373.75 and 279,994.41

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Solution

The fourth proportional to 617,137.74, 925,373.75 and 279,994.41 is: 419,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,137.74 : 925,373.75 = 279,994.41 : x
  2. Step 2: Convert to fraction form
    617,137.74/925,373.75 = 279,994.41/x
  3. Step 3: Cross multiply
    617,137.74x = 925,373.75 × 279,994.41
  4. Step 4: Simplify right side
    617,137.74x = 259,099,475,760.77
  5. Step 5: Solve for x
    x = 259,099,475,760.77/617,137.74
  6. Step 6: Final answer
    x = 419,840.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.