Home / 675,104.97-1,013,155.91-320,120.24

Finding the Fourth Proportional to 675,104.97, 1,013,155.91 and 320,120.24

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Solution

The fourth proportional to 675,104.97, 1,013,155.91 and 320,120.24 is: 480,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,104.97 : 1,013,155.91 = 320,120.24 : x
  2. Step 2: Convert to fraction form
    675,104.97/1,013,155.91 = 320,120.24/x
  3. Step 3: Cross multiply
    675,104.97x = 1,013,155.91 × 320,120.24
  4. Step 4: Simplify right side
    675,104.97x = 324,331,715,599.51
  5. Step 5: Solve for x
    x = 324,331,715,599.51/675,104.97
  6. Step 6: Final answer
    x = 480,416.72

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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.