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Finding the Fourth Proportional to 535,309.05, 738,723.03 and 305,936.49

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Solution

The fourth proportional to 535,309.05, 738,723.03 and 305,936.49 is: 422,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,309.05 : 738,723.03 = 305,936.49 : x
  2. Step 2: Convert to fraction form
    535,309.05/738,723.03 = 305,936.49/x
  3. Step 3: Cross multiply
    535,309.05x = 738,723.03 × 305,936.49
  4. Step 4: Simplify right side
    535,309.05x = 226,002,329,350.68
  5. Step 5: Solve for x
    x = 226,002,329,350.68/535,309.05
  6. Step 6: Final answer
    x = 422,190.38

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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.