Home / 678,785.24-936,725.84-376,979.24

Finding the Fourth Proportional to 678,785.24, 936,725.84 and 376,979.24

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Solution

The fourth proportional to 678,785.24, 936,725.84 and 376,979.24 is: 520,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,785.24 : 936,725.84 = 376,979.24 : x
  2. Step 2: Convert to fraction form
    678,785.24/936,725.84 = 376,979.24/x
  3. Step 3: Cross multiply
    678,785.24x = 936,725.84 × 376,979.24
  4. Step 4: Simplify right side
    678,785.24x = 353,126,195,251.56
  5. Step 5: Solve for x
    x = 353,126,195,251.56/678,785.24
  6. Step 6: Final answer
    x = 520,232.58

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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.