Home / 538,504.28-743,105.64-296,786.12

Finding the Fourth Proportional to 538,504.28, 743,105.64 and 296,786.12

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Solution

The fourth proportional to 538,504.28, 743,105.64 and 296,786.12 is: 409,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,504.28 : 743,105.64 = 296,786.12 : x
  2. Step 2: Convert to fraction form
    538,504.28/743,105.64 = 296,786.12/x
  3. Step 3: Cross multiply
    538,504.28x = 743,105.64 × 296,786.12
  4. Step 4: Simplify right side
    538,504.28x = 220,543,439,645.72
  5. Step 5: Solve for x
    x = 220,543,439,645.72/538,504.28
  6. Step 6: Final answer
    x = 409,548.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.