Home / 858,105.10-1,286,574.45-325,546.30

Finding the Fourth Proportional to 858,105.10, 1,286,574.45 and 325,546.30

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Solution

The fourth proportional to 858,105.10, 1,286,574.45 and 325,546.30 is: 488,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,105.10 : 1,286,574.45 = 325,546.30 : x
  2. Step 2: Convert to fraction form
    858,105.10/1,286,574.45 = 325,546.30/x
  3. Step 3: Cross multiply
    858,105.10x = 1,286,574.45 × 325,546.30
  4. Step 4: Simplify right side
    858,105.10x = 418,839,551,872.04
  5. Step 5: Solve for x
    x = 418,839,551,872.04/858,105.10
  6. Step 6: Final answer
    x = 488,098.20

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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.