Home / 789,255.54-1,089,169.38-426,679.29

Finding the Fourth Proportional to 789,255.54, 1,089,169.38 and 426,679.29

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Solution

The fourth proportional to 789,255.54, 1,089,169.38 and 426,679.29 is: 588,815.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,255.54 : 1,089,169.38 = 426,679.29 : x
  2. Step 2: Convert to fraction form
    789,255.54/1,089,169.38 = 426,679.29/x
  3. Step 3: Cross multiply
    789,255.54x = 1,089,169.38 × 426,679.29
  4. Step 4: Simplify right side
    789,255.54x = 464,726,017,748.14
  5. Step 5: Solve for x
    x = 464,726,017,748.14/789,255.54
  6. Step 6: Final answer
    x = 588,815.66

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Double scale
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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.