Home / 726,137.52-1,089,241.84-276,774.63

Finding the Fourth Proportional to 726,137.52, 1,089,241.84 and 276,774.63

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Solution

The fourth proportional to 726,137.52, 1,089,241.84 and 276,774.63 is: 415,175.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,137.52 : 1,089,241.84 = 276,774.63 : x
  2. Step 2: Convert to fraction form
    726,137.52/1,089,241.84 = 276,774.63/x
  3. Step 3: Cross multiply
    726,137.52x = 1,089,241.84 × 276,774.63
  4. Step 4: Simplify right side
    726,137.52x = 301,474,507,246.52
  5. Step 5: Solve for x
    x = 301,474,507,246.52/726,137.52
  6. Step 6: Final answer
    x = 415,175.50

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Double scale
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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.