Home / 789,577.62-1,089,625.72-427,008.56

Finding the Fourth Proportional to 789,577.62, 1,089,625.72 and 427,008.56

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Solution

The fourth proportional to 789,577.62, 1,089,625.72 and 427,008.56 is: 589,276.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,577.62 : 1,089,625.72 = 427,008.56 : x
  2. Step 2: Convert to fraction form
    789,577.62/1,089,625.72 = 427,008.56/x
  3. Step 3: Cross multiply
    789,577.62x = 1,089,625.72 × 427,008.56
  4. Step 4: Simplify right side
    789,577.62x = 465,279,509,636.16
  5. Step 5: Solve for x
    x = 465,279,509,636.16/789,577.62
  6. Step 6: Final answer
    x = 589,276.47

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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.