Home / 2,782,361.35-4,173,938.19-863,438.39

Finding the Fourth Proportional to 2,782,361.35, 4,173,938.19 and 863,438.39

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Solution

The fourth proportional to 2,782,361.35, 4,173,938.19 and 863,438.39 is: 1,295,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782,361.35 : 4,173,938.19 = 863,438.39 : x
  2. Step 2: Convert to fraction form
    2,782,361.35/4,173,938.19 = 863,438.39/x
  3. Step 3: Cross multiply
    2,782,361.35x = 4,173,938.19 × 863,438.39
  4. Step 4: Simplify right side
    2,782,361.35x = 3,603,938,470,733.11
  5. Step 5: Solve for x
    x = 3,603,938,470,733.11/2,782,361.35
  6. Step 6: Final answer
    x = 1,295,280.53

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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.