Home / 858,018.74-1,286,523.41-325,577.21

Finding the Fourth Proportional to 858,018.74, 1,286,523.41 and 325,577.21

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Solution

The fourth proportional to 858,018.74, 1,286,523.41 and 325,577.21 is: 488,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,018.74 : 1,286,523.41 = 325,577.21 : x
  2. Step 2: Convert to fraction form
    858,018.74/1,286,523.41 = 325,577.21/x
  3. Step 3: Cross multiply
    858,018.74x = 1,286,523.41 × 325,577.21
  4. Step 4: Simplify right side
    858,018.74x = 418,862,694,366.98
  5. Step 5: Solve for x
    x = 418,862,694,366.98/858,018.74
  6. Step 6: Final answer
    x = 488,174.30

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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.