Home / 675,131.64-1,013,195.88-320,146.86

Finding the Fourth Proportional to 675,131.64, 1,013,195.88 and 320,146.86

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Solution

The fourth proportional to 675,131.64, 1,013,195.88 and 320,146.86 is: 480,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,131.64 : 1,013,195.88 = 320,146.86 : x
  2. Step 2: Convert to fraction form
    675,131.64/1,013,195.88 = 320,146.86/x
  3. Step 3: Cross multiply
    675,131.64x = 1,013,195.88 × 320,146.86
  4. Step 4: Simplify right side
    675,131.64x = 324,371,479,546.94
  5. Step 5: Solve for x
    x = 324,371,479,546.94/675,131.64
  6. Step 6: Final answer
    x = 480,456.64

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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.