Home / 858,019.74-1,286,524.90-325,578.21

Finding the Fourth Proportional to 858,019.74, 1,286,524.90 and 325,578.21

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Solution

The fourth proportional to 858,019.74, 1,286,524.90 and 325,578.21 is: 488,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,019.74 : 1,286,524.90 = 325,578.21 : x
  2. Step 2: Convert to fraction form
    858,019.74/1,286,524.90 = 325,578.21/x
  3. Step 3: Cross multiply
    858,019.74x = 1,286,524.90 × 325,578.21
  4. Step 4: Simplify right side
    858,019.74x = 418,864,474,062.43
  5. Step 5: Solve for x
    x = 418,864,474,062.43/858,019.74
  6. Step 6: Final answer
    x = 488,175.80

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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.