Home / 397,529.47-548,769.79-261,634.76

Finding the Fourth Proportional to 397,529.47, 548,769.79 and 261,634.76

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Solution

The fourth proportional to 397,529.47, 548,769.79 and 261,634.76 is: 361,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,529.47 : 548,769.79 = 261,634.76 : x
  2. Step 2: Convert to fraction form
    397,529.47/548,769.79 = 261,634.76/x
  3. Step 3: Cross multiply
    397,529.47x = 548,769.79 × 261,634.76
  4. Step 4: Simplify right side
    397,529.47x = 143,577,250,471.29
  5. Step 5: Solve for x
    x = 143,577,250,471.29/397,529.47
  6. Step 6: Final answer
    x = 361,173.85

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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.