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Finding the Fourth Proportional to 548,902.95, 757,469.80 and 303,898.63

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Solution

The fourth proportional to 548,902.95, 757,469.80 and 303,898.63 is: 419,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,902.95 : 757,469.80 = 303,898.63 : x
  2. Step 2: Convert to fraction form
    548,902.95/757,469.80 = 303,898.63/x
  3. Step 3: Cross multiply
    548,902.95x = 757,469.80 × 303,898.63
  4. Step 4: Simplify right side
    548,902.95x = 230,194,034,486.37
  5. Step 5: Solve for x
    x = 230,194,034,486.37/548,902.95
  6. Step 6: Final answer
    x = 419,371.10

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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.