Home / 851,027.11-1,276,651.33-311,199.32

Finding the Fourth Proportional to 851,027.11, 1,276,651.33 and 311,199.32

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Solution

The fourth proportional to 851,027.11, 1,276,651.33 and 311,199.32 is: 466,839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,027.11 : 1,276,651.33 = 311,199.32 : x
  2. Step 2: Convert to fraction form
    851,027.11/1,276,651.33 = 311,199.32/x
  3. Step 3: Cross multiply
    851,027.11x = 1,276,651.33 × 311,199.32
  4. Step 4: Simplify right side
    851,027.11x = 397,293,028,186.73
  5. Step 5: Solve for x
    x = 397,293,028,186.73/851,027.11
  6. Step 6: Final answer
    x = 466,839.45

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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.