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Finding the Fourth Proportional to 552,405.37, 762,424.22 and 345,769.64

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Solution

The fourth proportional to 552,405.37, 762,424.22 and 345,769.64 is: 477,227.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,405.37 : 762,424.22 = 345,769.64 : x
  2. Step 2: Convert to fraction form
    552,405.37/762,424.22 = 345,769.64/x
  3. Step 3: Cross multiply
    552,405.37x = 762,424.22 × 345,769.64
  4. Step 4: Simplify right side
    552,405.37x = 263,623,148,076.68
  5. Step 5: Solve for x
    x = 263,623,148,076.68/552,405.37
  6. Step 6: Final answer
    x = 477,227.71

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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.