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Finding the Fourth Proportional to 548,845.27, 757,429.79 and 339,338.77

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Solution

The fourth proportional to 548,845.27, 757,429.79 and 339,338.77 is: 468,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,845.27 : 757,429.79 = 339,338.77 : x
  2. Step 2: Convert to fraction form
    548,845.27/757,429.79 = 339,338.77/x
  3. Step 3: Cross multiply
    548,845.27x = 757,429.79 × 339,338.77
  4. Step 4: Simplify right side
    548,845.27x = 257,025,289,709.69
  5. Step 5: Solve for x
    x = 257,025,289,709.69/548,845.27
  6. Step 6: Final answer
    x = 468,301.91

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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.