Home / 858,016.36-1,286,519.86-325,574.81

Finding the Fourth Proportional to 858,016.36, 1,286,519.86 and 325,574.81

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Solution

The fourth proportional to 858,016.36, 1,286,519.86 and 325,574.81 is: 488,170.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,016.36 : 1,286,519.86 = 325,574.81 : x
  2. Step 2: Convert to fraction form
    858,016.36/1,286,519.86 = 325,574.81/x
  3. Step 3: Cross multiply
    858,016.36x = 1,286,519.86 × 325,574.81
  4. Step 4: Simplify right side
    858,016.36x = 418,858,458,980.73
  5. Step 5: Solve for x
    x = 418,858,458,980.73/858,016.36
  6. Step 6: Final answer
    x = 488,170.71

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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.