Home / 789,574.62-1,089,621.58-427,005.56

Finding the Fourth Proportional to 789,574.62, 1,089,621.58 and 427,005.56

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Solution

The fourth proportional to 789,574.62, 1,089,621.58 and 427,005.56 is: 589,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,574.62 : 1,089,621.58 = 427,005.56 : x
  2. Step 2: Convert to fraction form
    789,574.62/1,089,621.58 = 427,005.56/x
  3. Step 3: Cross multiply
    789,574.62x = 1,089,621.58 × 427,005.56
  4. Step 4: Simplify right side
    789,574.62x = 465,274,472,955.99
  5. Step 5: Solve for x
    x = 465,274,472,955.99/789,574.62
  6. Step 6: Final answer
    x = 589,272.33

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1.5x scale

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.