Home / 1,261,390.88-1,892,371.44-419,975.84

Finding the Fourth Proportional to 1,261,390.88, 1,892,371.44 and 419,975.84

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Solution

The fourth proportional to 1,261,390.88, 1,892,371.44 and 419,975.84 is: 630,058.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,390.88 : 1,892,371.44 = 419,975.84 : x
  2. Step 2: Convert to fraction form
    1,261,390.88/1,892,371.44 = 419,975.84/x
  3. Step 3: Cross multiply
    1,261,390.88x = 1,892,371.44 × 419,975.84
  4. Step 4: Simplify right side
    1,261,390.88x = 794,750,285,106.01
  5. Step 5: Solve for x
    x = 794,750,285,106.01/1,261,390.88
  6. Step 6: Final answer
    x = 630,058.69

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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.