Home / 858,015.36-1,286,518.37-325,573.81

Finding the Fourth Proportional to 858,015.36, 1,286,518.37 and 325,573.81

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Solution

The fourth proportional to 858,015.36, 1,286,518.37 and 325,573.81 is: 488,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,015.36 : 1,286,518.37 = 325,573.81 : x
  2. Step 2: Convert to fraction form
    858,015.36/1,286,518.37 = 325,573.81/x
  3. Step 3: Cross multiply
    858,015.36x = 1,286,518.37 × 325,573.81
  4. Step 4: Simplify right side
    858,015.36x = 418,856,682,511.73
  5. Step 5: Solve for x
    x = 418,856,682,511.73/858,015.36
  6. Step 6: Final answer
    x = 488,169.21

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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.