Home / 726,255.52-1,089,383.38-193,778.53

Finding the Fourth Proportional to 726,255.52, 1,089,383.38 and 193,778.53

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Solution

The fourth proportional to 726,255.52, 1,089,383.38 and 193,778.53 is: 290,667.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,255.52 : 1,089,383.38 = 193,778.53 : x
  2. Step 2: Convert to fraction form
    726,255.52/1,089,383.38 = 193,778.53/x
  3. Step 3: Cross multiply
    726,255.52x = 1,089,383.38 × 193,778.53
  4. Step 4: Simplify right side
    726,255.52x = 211,099,106,774.93
  5. Step 5: Solve for x
    x = 211,099,106,774.93/726,255.52
  6. Step 6: Final answer
    x = 290,667.82

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.