Home / 1,370,479.44-1,891,460.70-789,589.56

Finding the Fourth Proportional to 1,370,479.44, 1,891,460.70 and 789,589.56

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Solution

The fourth proportional to 1,370,479.44, 1,891,460.70 and 789,589.56 is: 1,089,748.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,479.44 : 1,891,460.70 = 789,589.56 : x
  2. Step 2: Convert to fraction form
    1,370,479.44/1,891,460.70 = 789,589.56/x
  3. Step 3: Cross multiply
    1,370,479.44x = 1,891,460.70 × 789,589.56
  4. Step 4: Simplify right side
    1,370,479.44x = 1,493,477,621,870.29
  5. Step 5: Solve for x
    x = 1,493,477,621,870.29/1,370,479.44
  6. Step 6: Final answer
    x = 1,089,748.29

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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.