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Finding the Fourth Proportional to 548,268.86, 756,575.97 and 306,571.34

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Solution

The fourth proportional to 548,268.86, 756,575.97 and 306,571.34 is: 423,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,268.86 : 756,575.97 = 306,571.34 : x
  2. Step 2: Convert to fraction form
    548,268.86/756,575.97 = 306,571.34/x
  3. Step 3: Cross multiply
    548,268.86x = 756,575.97 × 306,571.34
  4. Step 4: Simplify right side
    548,268.86x = 231,944,508,934.70
  5. Step 5: Solve for x
    x = 231,944,508,934.70/548,268.86
  6. Step 6: Final answer
    x = 423,048.85

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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.