Home / 1,393,793.46-1,923,201.82-820,947.69

Finding the Fourth Proportional to 1,393,793.46, 1,923,201.82 and 820,947.69

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Solution

The fourth proportional to 1,393,793.46, 1,923,201.82 and 820,947.69 is: 1,132,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,793.46 : 1,923,201.82 = 820,947.69 : x
  2. Step 2: Convert to fraction form
    1,393,793.46/1,923,201.82 = 820,947.69/x
  3. Step 3: Cross multiply
    1,393,793.46x = 1,923,201.82 × 820,947.69
  4. Step 4: Simplify right side
    1,393,793.46x = 1,578,848,091,532.80
  5. Step 5: Solve for x
    x = 1,578,848,091,532.80/1,393,793.46
  6. Step 6: Final answer
    x = 1,132,770.48

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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.