Home / 693,172.40-1,040,147.40-293,745.20

Finding the Fourth Proportional to 693,172.40, 1,040,147.40 and 293,745.20

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Solution

The fourth proportional to 693,172.40, 1,040,147.40 and 293,745.20 is: 440,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,172.40 : 1,040,147.40 = 293,745.20 : x
  2. Step 2: Convert to fraction form
    693,172.40/1,040,147.40 = 293,745.20/x
  3. Step 3: Cross multiply
    693,172.40x = 1,040,147.40 × 293,745.20
  4. Step 4: Simplify right side
    693,172.40x = 305,538,306,042.48
  5. Step 5: Solve for x
    x = 305,538,306,042.48/693,172.40
  6. Step 6: Final answer
    x = 440,782.56

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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.