Home / 1,920,161.88-2,880,232.35-782,919.66

Finding the Fourth Proportional to 1,920,161.88, 2,880,232.35 and 782,919.66

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Solution

The fourth proportional to 1,920,161.88, 2,880,232.35 and 782,919.66 is: 1,174,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,161.88 : 2,880,232.35 = 782,919.66 : x
  2. Step 2: Convert to fraction form
    1,920,161.88/2,880,232.35 = 782,919.66/x
  3. Step 3: Cross multiply
    1,920,161.88x = 2,880,232.35 × 782,919.66
  4. Step 4: Simplify right side
    1,920,161.88x = 2,254,990,532,183.00
  5. Step 5: Solve for x
    x = 2,254,990,532,183.00/1,920,161.88
  6. Step 6: Final answer
    x = 1,174,375.22

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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.