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Finding the Fourth Proportional to 548,247.70, 756,597.54 and 306,530.90

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Solution

The fourth proportional to 548,247.70, 756,597.54 and 306,530.90 is: 423,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,247.70 : 756,597.54 = 306,530.90 : x
  2. Step 2: Convert to fraction form
    548,247.70/756,597.54 = 306,530.90/x
  3. Step 3: Cross multiply
    548,247.70x = 756,597.54 × 306,530.90
  4. Step 4: Simplify right side
    548,247.70x = 231,920,524,873.99
  5. Step 5: Solve for x
    x = 231,920,524,873.99/548,247.70
  6. Step 6: Final answer
    x = 423,021.43

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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.