Home / 2,660,560.80-3,991,424.40-863,138.40

Finding the Fourth Proportional to 2,660,560.80, 3,991,424.40 and 863,138.40

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Solution

The fourth proportional to 2,660,560.80, 3,991,424.40 and 863,138.40 is: 1,294,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,560.80 : 3,991,424.40 = 863,138.40 : x
  2. Step 2: Convert to fraction form
    2,660,560.80/3,991,424.40 = 863,138.40/x
  3. Step 3: Cross multiply
    2,660,560.80x = 3,991,424.40 × 863,138.40
  4. Step 4: Simplify right side
    2,660,560.80x = 3,445,151,670,336.96
  5. Step 5: Solve for x
    x = 3,445,151,670,336.96/2,660,560.80
  6. Step 6: Final answer
    x = 1,294,896.80

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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.