Home / 789,651.58-1,089,716.04-427,075.84

Finding the Fourth Proportional to 789,651.58, 1,089,716.04 and 427,075.84

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Solution

The fourth proportional to 789,651.58, 1,089,716.04 and 427,075.84 is: 589,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,651.58 : 1,089,716.04 = 427,075.84 : x
  2. Step 2: Convert to fraction form
    789,651.58/1,089,716.04 = 427,075.84/x
  3. Step 3: Cross multiply
    789,651.58x = 1,089,716.04 × 427,075.84
  4. Step 4: Simplify right side
    789,651.58x = 465,391,393,144.47
  5. Step 5: Solve for x
    x = 465,391,393,144.47/789,651.58
  6. Step 6: Final answer
    x = 589,362.96

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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.