Home / 851,645.40-1,277,734.20-252,609.90

Finding the Fourth Proportional to 851,645.40, 1,277,734.20 and 252,609.90

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Solution

The fourth proportional to 851,645.40, 1,277,734.20 and 252,609.90 is: 378,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,645.40 : 1,277,734.20 = 252,609.90 : x
  2. Step 2: Convert to fraction form
    851,645.40/1,277,734.20 = 252,609.90/x
  3. Step 3: Cross multiply
    851,645.40x = 1,277,734.20 × 252,609.90
  4. Step 4: Simplify right side
    851,645.40x = 322,768,308,488.58
  5. Step 5: Solve for x
    x = 322,768,308,488.58/851,645.40
  6. Step 6: Final answer
    x = 378,993.78

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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.