Home / 742,648.38-1,112,974.74-405,183.36

Finding the Fourth Proportional to 742,648.38, 1,112,974.74 and 405,183.36

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Solution

The fourth proportional to 742,648.38, 1,112,974.74 and 405,183.36 is: 607,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,648.38 : 1,112,974.74 = 405,183.36 : x
  2. Step 2: Convert to fraction form
    742,648.38/1,112,974.74 = 405,183.36/x
  3. Step 3: Cross multiply
    742,648.38x = 1,112,974.74 × 405,183.36
  4. Step 4: Simplify right side
    742,648.38x = 450,958,844,748.33
  5. Step 5: Solve for x
    x = 450,958,844,748.33/742,648.38
  6. Step 6: Final answer
    x = 607,230.63

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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.