Home / 1,400,990.76-1,933,486.38-789,263.64

Finding the Fourth Proportional to 1,400,990.76, 1,933,486.38 and 789,263.64

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Solution

The fourth proportional to 1,400,990.76, 1,933,486.38 and 789,263.64 is: 1,089,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,990.76 : 1,933,486.38 = 789,263.64 : x
  2. Step 2: Convert to fraction form
    1,400,990.76/1,933,486.38 = 789,263.64/x
  3. Step 3: Cross multiply
    1,400,990.76x = 1,933,486.38 × 789,263.64
  4. Step 4: Simplify right side
    1,400,990.76x = 1,526,030,498,169.22
  5. Step 5: Solve for x
    x = 1,526,030,498,169.22/1,400,990.76
  6. Step 6: Final answer
    x = 1,089,250.94

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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.