Home / 493,928.62-681,634.78-279,064.10

Finding the Fourth Proportional to 493,928.62, 681,634.78 and 279,064.10

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Solution

The fourth proportional to 493,928.62, 681,634.78 and 279,064.10 is: 385,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,928.62 : 681,634.78 = 279,064.10 : x
  2. Step 2: Convert to fraction form
    493,928.62/681,634.78 = 279,064.10/x
  3. Step 3: Cross multiply
    493,928.62x = 681,634.78 × 279,064.10
  4. Step 4: Simplify right side
    493,928.62x = 190,219,797,415.83
  5. Step 5: Solve for x
    x = 190,219,797,415.83/493,928.62
  6. Step 6: Final answer
    x = 385,115.97

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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.