Home / 857,819.03-1,286,737.77-258,785.37

Finding the Fourth Proportional to 857,819.03, 1,286,737.77 and 258,785.37

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Solution

The fourth proportional to 857,819.03, 1,286,737.77 and 258,785.37 is: 388,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,819.03 : 1,286,737.77 = 258,785.37 : x
  2. Step 2: Convert to fraction form
    857,819.03/1,286,737.77 = 258,785.37/x
  3. Step 3: Cross multiply
    857,819.03x = 1,286,737.77 × 258,785.37
  4. Step 4: Simplify right side
    857,819.03x = 332,988,909,902.43
  5. Step 5: Solve for x
    x = 332,988,909,902.43/857,819.03
  6. Step 6: Final answer
    x = 388,180.84

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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.