Home / 711,458.88-1,067,109.48-178,979.76

Finding the Fourth Proportional to 711,458.88, 1,067,109.48 and 178,979.76

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Solution

The fourth proportional to 711,458.88, 1,067,109.48 and 178,979.76 is: 268,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,458.88 : 1,067,109.48 = 178,979.76 : x
  2. Step 2: Convert to fraction form
    711,458.88/1,067,109.48 = 178,979.76/x
  3. Step 3: Cross multiply
    711,458.88x = 1,067,109.48 × 178,979.76
  4. Step 4: Simplify right side
    711,458.88x = 190,990,998,624.13
  5. Step 5: Solve for x
    x = 190,990,998,624.13/711,458.88
  6. Step 6: Final answer
    x = 268,449.81

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1.5x scale

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.