Home / 863,384.94-1,294,338.78-331,287.84

Finding the Fourth Proportional to 863,384.94, 1,294,338.78 and 331,287.84

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Solution

The fourth proportional to 863,384.94, 1,294,338.78 and 331,287.84 is: 496,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,384.94 : 1,294,338.78 = 331,287.84 : x
  2. Step 2: Convert to fraction form
    863,384.94/1,294,338.78 = 331,287.84/x
  3. Step 3: Cross multiply
    863,384.94x = 1,294,338.78 × 331,287.84
  4. Step 4: Simplify right side
    863,384.94x = 428,798,698,654.44
  5. Step 5: Solve for x
    x = 428,798,698,654.44/863,384.94
  6. Step 6: Final answer
    x = 496,648.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.