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Finding the Fourth Proportional to 548,903.03, 757,469.90 and 303,898.70

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Solution

The fourth proportional to 548,903.03, 757,469.90 and 303,898.70 is: 419,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,903.03 : 757,469.90 = 303,898.70 : x
  2. Step 2: Convert to fraction form
    548,903.03/757,469.90 = 303,898.70/x
  3. Step 3: Cross multiply
    548,903.03x = 757,469.90 × 303,898.70
  4. Step 4: Simplify right side
    548,903.03x = 230,194,112,592.29
  5. Step 5: Solve for x
    x = 230,194,112,592.29/548,903.03
  6. Step 6: Final answer
    x = 419,371.19

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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.