Home / 3,219,921.39-4,829,831.87-823,745.37

Finding the Fourth Proportional to 3,219,921.39, 4,829,831.87 and 823,745.37

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Solution

The fourth proportional to 3,219,921.39, 4,829,831.87 and 823,745.37 is: 1,235,605.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,921.39 : 4,829,831.87 = 823,745.37 : x
  2. Step 2: Convert to fraction form
    3,219,921.39/4,829,831.87 = 823,745.37/x
  3. Step 3: Cross multiply
    3,219,921.39x = 4,829,831.87 × 823,745.37
  4. Step 4: Simplify right side
    3,219,921.39x = 3,978,551,636,672.22
  5. Step 5: Solve for x
    x = 3,978,551,636,672.22/3,219,921.39
  6. Step 6: Final answer
    x = 1,235,605.21

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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.