Home / 2,660,311.20-3,989,689.20-954,256.80

Finding the Fourth Proportional to 2,660,311.20, 3,989,689.20 and 954,256.80

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Solution

The fourth proportional to 2,660,311.20, 3,989,689.20 and 954,256.80 is: 1,431,106.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,311.20 : 3,989,689.20 = 954,256.80 : x
  2. Step 2: Convert to fraction form
    2,660,311.20/3,989,689.20 = 954,256.80/x
  3. Step 3: Cross multiply
    2,660,311.20x = 3,989,689.20 × 954,256.80
  4. Step 4: Simplify right side
    2,660,311.20x = 3,807,188,048,986.56
  5. Step 5: Solve for x
    x = 3,807,188,048,986.56/2,660,311.20
  6. Step 6: Final answer
    x = 1,431,106.27

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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.