Home / 1,419,702.90-2,131,109.55-789,846.90

Finding the Fourth Proportional to 1,419,702.90, 2,131,109.55 and 789,846.90

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Solution

The fourth proportional to 1,419,702.90, 2,131,109.55 and 789,846.90 is: 1,185,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,702.90 : 2,131,109.55 = 789,846.90 : x
  2. Step 2: Convert to fraction form
    1,419,702.90/2,131,109.55 = 789,846.90/x
  3. Step 3: Cross multiply
    1,419,702.90x = 2,131,109.55 × 789,846.90
  4. Step 4: Simplify right side
    1,419,702.90x = 1,683,250,271,627.90
  5. Step 5: Solve for x
    x = 1,683,250,271,627.90/1,419,702.90
  6. Step 6: Final answer
    x = 1,185,635.58

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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.