Home / 851,039.68-1,276,591.92-318,504.64

Finding the Fourth Proportional to 851,039.68, 1,276,591.92 and 318,504.64

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Solution

The fourth proportional to 851,039.68, 1,276,591.92 and 318,504.64 is: 477,769.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,039.68 : 1,276,591.92 = 318,504.64 : x
  2. Step 2: Convert to fraction form
    851,039.68/1,276,591.92 = 318,504.64/x
  3. Step 3: Cross multiply
    851,039.68x = 1,276,591.92 × 318,504.64
  4. Step 4: Simplify right side
    851,039.68x = 406,600,449,906.51
  5. Step 5: Solve for x
    x = 406,600,449,906.51/851,039.68
  6. Step 6: Final answer
    x = 477,769.09

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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.