Home / 643,164.91-964,852.27-263,983.88

Finding the Fourth Proportional to 643,164.91, 964,852.27 and 263,983.88

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Solution

The fourth proportional to 643,164.91, 964,852.27 and 263,983.88 is: 396,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,164.91 : 964,852.27 = 263,983.88 : x
  2. Step 2: Convert to fraction form
    643,164.91/964,852.27 = 263,983.88/x
  3. Step 3: Cross multiply
    643,164.91x = 964,852.27 × 263,983.88
  4. Step 4: Simplify right side
    643,164.91x = 254,705,441,037.15
  5. Step 5: Solve for x
    x = 254,705,441,037.15/643,164.91
  6. Step 6: Final answer
    x = 396,018.87

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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.