Home / 675,474.90-1,013,335.11-320,485.61

Finding the Fourth Proportional to 675,474.90, 1,013,335.11 and 320,485.61

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Solution

The fourth proportional to 675,474.90, 1,013,335.11 and 320,485.61 is: 480,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,474.90 : 1,013,335.11 = 320,485.61 : x
  2. Step 2: Convert to fraction form
    675,474.90/1,013,335.11 = 320,485.61/x
  3. Step 3: Cross multiply
    675,474.90x = 1,013,335.11 × 320,485.61
  4. Step 4: Simplify right side
    675,474.90x = 324,759,323,396.11
  5. Step 5: Solve for x
    x = 324,759,323,396.11/675,474.90
  6. Step 6: Final answer
    x = 480,786.67

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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.