Home / 762,748.26-1,144,286.40-257,321.76

Finding the Fourth Proportional to 762,748.26, 1,144,286.40 and 257,321.76

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Solution

The fourth proportional to 762,748.26, 1,144,286.40 and 257,321.76 is: 386,037.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,748.26 : 1,144,286.40 = 257,321.76 : x
  2. Step 2: Convert to fraction form
    762,748.26/1,144,286.40 = 257,321.76/x
  3. Step 3: Cross multiply
    762,748.26x = 1,144,286.40 × 257,321.76
  4. Step 4: Simplify right side
    762,748.26x = 294,449,790,392.06
  5. Step 5: Solve for x
    x = 294,449,790,392.06/762,748.26
  6. Step 6: Final answer
    x = 386,037.97

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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.