Home / 2,660,435.70-3,989,669.40-863,377.80

Finding the Fourth Proportional to 2,660,435.70, 3,989,669.40 and 863,377.80

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Solution

The fourth proportional to 2,660,435.70, 3,989,669.40 and 863,377.80 is: 1,294,747.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,435.70 : 3,989,669.40 = 863,377.80 : x
  2. Step 2: Convert to fraction form
    2,660,435.70/3,989,669.40 = 863,377.80/x
  3. Step 3: Cross multiply
    2,660,435.70x = 3,989,669.40 × 863,377.80
  4. Step 4: Simplify right side
    2,660,435.70x = 3,444,591,989,299.32
  5. Step 5: Solve for x
    x = 3,444,591,989,299.32/2,660,435.70
  6. Step 6: Final answer
    x = 1,294,747.32

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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.