Home / 459,542.12-689,179.26-178,992.68

Finding the Fourth Proportional to 459,542.12, 689,179.26 and 178,992.68

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Solution

The fourth proportional to 459,542.12, 689,179.26 and 178,992.68 is: 268,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,542.12 : 689,179.26 = 178,992.68 : x
  2. Step 2: Convert to fraction form
    459,542.12/689,179.26 = 178,992.68/x
  3. Step 3: Cross multiply
    459,542.12x = 689,179.26 × 178,992.68
  4. Step 4: Simplify right side
    459,542.12x = 123,358,042,747.82
  5. Step 5: Solve for x
    x = 123,358,042,747.82/459,542.12
  6. Step 6: Final answer
    x = 268,436.86

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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.