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Finding the Fourth Proportional to 722,036.52, 996,372.41 and 395,286.98

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Solution

The fourth proportional to 722,036.52, 996,372.41 and 395,286.98 is: 545,475.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,036.52 : 996,372.41 = 395,286.98 : x
  2. Step 2: Convert to fraction form
    722,036.52/996,372.41 = 395,286.98/x
  3. Step 3: Cross multiply
    722,036.52x = 996,372.41 × 395,286.98
  4. Step 4: Simplify right side
    722,036.52x = 393,853,033,945.93
  5. Step 5: Solve for x
    x = 393,853,033,945.93/722,036.52
  6. Step 6: Final answer
    x = 545,475.23

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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.