Home / 1,401,278.36-1,933,770.06-789,438.42

Finding the Fourth Proportional to 1,401,278.36, 1,933,770.06 and 789,438.42

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Solution

The fourth proportional to 1,401,278.36, 1,933,770.06 and 789,438.42 is: 1,089,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,278.36 : 1,933,770.06 = 789,438.42 : x
  2. Step 2: Convert to fraction form
    1,401,278.36/1,933,770.06 = 789,438.42/x
  3. Step 3: Cross multiply
    1,401,278.36x = 1,933,770.06 × 789,438.42
  4. Step 4: Simplify right side
    1,401,278.36x = 1,526,592,380,809.71
  5. Step 5: Solve for x
    x = 1,526,592,380,809.71/1,401,278.36
  6. Step 6: Final answer
    x = 1,089,428.36

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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.