Home / 857,942.73-1,286,921.43-218,247.02

Finding the Fourth Proportional to 857,942.73, 1,286,921.43 and 218,247.02

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Solution

The fourth proportional to 857,942.73, 1,286,921.43 and 218,247.02 is: 327,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,942.73 : 1,286,921.43 = 218,247.02 : x
  2. Step 2: Convert to fraction form
    857,942.73/1,286,921.43 = 218,247.02/x
  3. Step 3: Cross multiply
    857,942.73x = 1,286,921.43 × 218,247.02
  4. Step 4: Simplify right side
    857,942.73x = 280,866,767,071.64
  5. Step 5: Solve for x
    x = 280,866,767,071.64/857,942.73
  6. Step 6: Final answer
    x = 327,372.40

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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.