Home / 789,187.76-1,089,079.91-426,611.71

Finding the Fourth Proportional to 789,187.76, 1,089,079.91 and 426,611.71

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Solution

The fourth proportional to 789,187.76, 1,089,079.91 and 426,611.71 is: 588,724.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,187.76 : 1,089,079.91 = 426,611.71 : x
  2. Step 2: Convert to fraction form
    789,187.76/1,089,079.91 = 426,611.71/x
  3. Step 3: Cross multiply
    789,187.76x = 1,089,079.91 × 426,611.71
  4. Step 4: Simplify right side
    789,187.76x = 464,614,242,359.99
  5. Step 5: Solve for x
    x = 464,614,242,359.99/789,187.76
  6. Step 6: Final answer
    x = 588,724.59

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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.