Home / 1,401,438.86-1,933,936.19-789,719.93

Finding the Fourth Proportional to 1,401,438.86, 1,933,936.19 and 789,719.93

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Solution

The fourth proportional to 1,401,438.86, 1,933,936.19 and 789,719.93 is: 1,089,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,438.86 : 1,933,936.19 = 789,719.93 : x
  2. Step 2: Convert to fraction form
    1,401,438.86/1,933,936.19 = 789,719.93/x
  3. Step 3: Cross multiply
    1,401,438.86x = 1,933,936.19 × 789,719.93
  4. Step 4: Simplify right side
    1,401,438.86x = 1,527,267,938,972.99
  5. Step 5: Solve for x
    x = 1,527,267,938,972.99/1,401,438.86
  6. Step 6: Final answer
    x = 1,089,785.64

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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.