Home / 851,155.76-1,276,920.40-252,163.76

Finding the Fourth Proportional to 851,155.76, 1,276,920.40 and 252,163.76

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Solution

The fourth proportional to 851,155.76, 1,276,920.40 and 252,163.76 is: 378,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,155.76 : 1,276,920.40 = 252,163.76 : x
  2. Step 2: Convert to fraction form
    851,155.76/1,276,920.40 = 252,163.76/x
  3. Step 3: Cross multiply
    851,155.76x = 1,276,920.40 × 252,163.76
  4. Step 4: Simplify right side
    851,155.76x = 321,993,049,284.70
  5. Step 5: Solve for x
    x = 321,993,049,284.70/851,155.76
  6. Step 6: Final answer
    x = 378,300.97

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1.5x scale

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.