Home / 789,639.87-1,089,703.01-427,063.73

Finding the Fourth Proportional to 789,639.87, 1,089,703.01 and 427,063.73

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Solution

The fourth proportional to 789,639.87, 1,089,703.01 and 427,063.73 is: 589,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,639.87 : 1,089,703.01 = 427,063.73 : x
  2. Step 2: Convert to fraction form
    789,639.87/1,089,703.01 = 427,063.73/x
  3. Step 3: Cross multiply
    789,639.87x = 1,089,703.01 × 427,063.73
  4. Step 4: Simplify right side
    789,639.87x = 465,372,624,458.99
  5. Step 5: Solve for x
    x = 465,372,624,458.99/789,639.87
  6. Step 6: Final answer
    x = 589,347.93

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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.