Home / 1,911,578.98-2,637,958.69-1,052,120.78

Finding the Fourth Proportional to 1,911,578.98, 2,637,958.69 and 1,052,120.78

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Solution

The fourth proportional to 1,911,578.98, 2,637,958.69 and 1,052,120.78 is: 1,451,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,578.98 : 2,637,958.69 = 1,052,120.78 : x
  2. Step 2: Convert to fraction form
    1,911,578.98/2,637,958.69 = 1,052,120.78/x
  3. Step 3: Cross multiply
    1,911,578.98x = 2,637,958.69 × 1,052,120.78
  4. Step 4: Simplify right side
    1,911,578.98x = 2,775,451,154,530.58
  5. Step 5: Solve for x
    x = 2,775,451,154,530.58/1,911,578.98
  6. Step 6: Final answer
    x = 1,451,915.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.