Home / 1,942,361.70-2,912,160.15-743,820.90

Finding the Fourth Proportional to 1,942,361.70, 2,912,160.15 and 743,820.90

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Solution

The fourth proportional to 1,942,361.70, 2,912,160.15 and 743,820.90 is: 1,115,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,361.70 : 2,912,160.15 = 743,820.90 : x
  2. Step 2: Convert to fraction form
    1,942,361.70/2,912,160.15 = 743,820.90/x
  3. Step 3: Cross multiply
    1,942,361.70x = 2,912,160.15 × 743,820.90
  4. Step 4: Simplify right side
    1,942,361.70x = 2,166,125,583,717.14
  5. Step 5: Solve for x
    x = 2,166,125,583,717.14/1,942,361.70
  6. Step 6: Final answer
    x = 1,115,201.96

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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.