Home / 857,922.03-1,286,850.69-258,867.21

Finding the Fourth Proportional to 857,922.03, 1,286,850.69 and 258,867.21

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Solution

The fourth proportional to 857,922.03, 1,286,850.69 and 258,867.21 is: 388,291.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,922.03 : 1,286,850.69 = 258,867.21 : x
  2. Step 2: Convert to fraction form
    857,922.03/1,286,850.69 = 258,867.21/x
  3. Step 3: Cross multiply
    857,922.03x = 1,286,850.69 × 258,867.21
  4. Step 4: Simplify right side
    857,922.03x = 333,123,447,806.88
  5. Step 5: Solve for x
    x = 333,123,447,806.88/857,922.03
  6. Step 6: Final answer
    x = 388,291.05

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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.