Home / 3,240,243.46-4,860,347.60-1,321,147.20

Finding the Fourth Proportional to 3,240,243.46, 4,860,347.60 and 1,321,147.20

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Solution

The fourth proportional to 3,240,243.46, 4,860,347.60 and 1,321,147.20 is: 1,981,713.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240,243.46 : 4,860,347.60 = 1,321,147.20 : x
  2. Step 2: Convert to fraction form
    3,240,243.46/4,860,347.60 = 1,321,147.20/x
  3. Step 3: Cross multiply
    3,240,243.46x = 4,860,347.60 × 1,321,147.20
  4. Step 4: Simplify right side
    3,240,243.46x = 6,421,234,622,766.72
  5. Step 5: Solve for x
    x = 6,421,234,622,766.72/3,240,243.46
  6. Step 6: Final answer
    x = 1,981,713.63

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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.