Home / 789,323.68-1,089,244.56-431,620

Finding the Fourth Proportional to 789,323.68, 1,089,244.56 and 431,620

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Solution

The fourth proportional to 789,323.68, 1,089,244.56 and 431,620 is: 595,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,323.68 : 1,089,244.56 = 431,620 : x
  2. Step 2: Convert to fraction form
    789,323.68/1,089,244.56 = 431,620/x
  3. Step 3: Cross multiply
    789,323.68x = 1,089,244.56 × 431,620
  4. Step 4: Simplify right side
    789,323.68x = 470,139,736,987.20
  5. Step 5: Solve for x
    x = 470,139,736,987.20/789,323.68
  6. Step 6: Final answer
    x = 595,623.51

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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.