Home / 693,422.80-1,040,134.20-320,174.80

Finding the Fourth Proportional to 693,422.80, 1,040,134.20 and 320,174.80

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Solution

The fourth proportional to 693,422.80, 1,040,134.20 and 320,174.80 is: 480,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,422.80 : 1,040,134.20 = 320,174.80 : x
  2. Step 2: Convert to fraction form
    693,422.80/1,040,134.20 = 320,174.80/x
  3. Step 3: Cross multiply
    693,422.80x = 1,040,134.20 × 320,174.80
  4. Step 4: Simplify right side
    693,422.80x = 333,024,759,458.16
  5. Step 5: Solve for x
    x = 333,024,759,458.16/693,422.80
  6. Step 6: Final answer
    x = 480,262.20

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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.