Home / 493,872.12-681,529.59-289,919.79

Finding the Fourth Proportional to 493,872.12, 681,529.59 and 289,919.79

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Solution

The fourth proportional to 493,872.12, 681,529.59 and 289,919.79 is: 400,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,872.12 : 681,529.59 = 289,919.79 : x
  2. Step 2: Convert to fraction form
    493,872.12/681,529.59 = 289,919.79/x
  3. Step 3: Cross multiply
    493,872.12x = 681,529.59 × 289,919.79
  4. Step 4: Simplify right side
    493,872.12x = 197,588,915,611.59
  5. Step 5: Solve for x
    x = 197,588,915,611.59/493,872.12
  6. Step 6: Final answer
    x = 400,081.13

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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.