Home / 789,408-1,089,408.96-431,712

Finding the Fourth Proportional to 789,408, 1,089,408.96 and 431,712

Calculator

Solution

The fourth proportional to 789,408, 1,089,408.96 and 431,712 is: 595,776.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,408 : 1,089,408.96 = 431,712 : x
  2. Step 2: Convert to fraction form
    789,408/1,089,408.96 = 431,712/x
  3. Step 3: Cross multiply
    789,408x = 1,089,408.96 × 431,712
  4. Step 4: Simplify right side
    789,408x = 470,310,920,939.52
  5. Step 5: Solve for x
    x = 470,310,920,939.52/789,408
  6. Step 6: Final answer
    x = 595,776.74

Related Problems

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.