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Finding the Fourth Proportional to 548,043.73, 816,286.63 and 523,454.21

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Solution

The fourth proportional to 548,043.73, 816,286.63 and 523,454.21 is: 779,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,043.73 : 816,286.63 = 523,454.21 : x
  2. Step 2: Convert to fraction form
    548,043.73/816,286.63 = 523,454.21/x
  3. Step 3: Cross multiply
    548,043.73x = 816,286.63 × 523,454.21
  4. Step 4: Simplify right side
    548,043.73x = 427,288,670,632.28
  5. Step 5: Solve for x
    x = 427,288,670,632.28/548,043.73
  6. Step 6: Final answer
    x = 779,661.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.