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Finding the Fourth Proportional to 548,945.31, 757,544.42 and 307,227.87

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Solution

The fourth proportional to 548,945.31, 757,544.42 and 307,227.87 is: 423,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,945.31 : 757,544.42 = 307,227.87 : x
  2. Step 2: Convert to fraction form
    548,945.31/757,544.42 = 307,227.87/x
  3. Step 3: Cross multiply
    548,945.31x = 757,544.42 × 307,227.87
  4. Step 4: Simplify right side
    548,945.31x = 232,738,757,626.90
  5. Step 5: Solve for x
    x = 232,738,757,626.90/548,945.31
  6. Step 6: Final answer
    x = 423,974.40

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1.5x scale

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.