Home / 1,394,342.70-1,923,754.32-782,405.52

Finding the Fourth Proportional to 1,394,342.70, 1,923,754.32 and 782,405.52

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Solution

The fourth proportional to 1,394,342.70, 1,923,754.32 and 782,405.52 is: 1,079,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,342.70 : 1,923,754.32 = 782,405.52 : x
  2. Step 2: Convert to fraction form
    1,394,342.70/1,923,754.32 = 782,405.52/x
  3. Step 3: Cross multiply
    1,394,342.70x = 1,923,754.32 × 782,405.52
  4. Step 4: Simplify right side
    1,394,342.70x = 1,505,155,999,091.85
  5. Step 5: Solve for x
    x = 1,505,155,999,091.85/1,394,342.70
  6. Step 6: Final answer
    x = 1,079,473.50

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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.