Home / 1,919,161.74-2,879,738.91-782,757.66

Finding the Fourth Proportional to 1,919,161.74, 2,879,738.91 and 782,757.66

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Solution

The fourth proportional to 1,919,161.74, 2,879,738.91 and 782,757.66 is: 1,174,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,161.74 : 2,879,738.91 = 782,757.66 : x
  2. Step 2: Convert to fraction form
    1,919,161.74/2,879,738.91 = 782,757.66/x
  3. Step 3: Cross multiply
    1,919,161.74x = 2,879,738.91 × 782,757.66
  4. Step 4: Simplify right side
    1,919,161.74x = 2,254,137,690,602.55
  5. Step 5: Solve for x
    x = 2,254,137,690,602.55/1,919,161.74
  6. Step 6: Final answer
    x = 1,174,542.85

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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.