Home / 2,099,690.78-2,897,574-1,228,692.92

Finding the Fourth Proportional to 2,099,690.78, 2,897,574 and 1,228,692.92

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Solution

The fourth proportional to 2,099,690.78, 2,897,574 and 1,228,692.92 is: 1,695,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,690.78 : 2,897,574 = 1,228,692.92 : x
  2. Step 2: Convert to fraction form
    2,099,690.78/2,897,574 = 1,228,692.92/x
  3. Step 3: Cross multiply
    2,099,690.78x = 2,897,574 × 1,228,692.92
  4. Step 4: Simplify right side
    2,099,690.78x = 3,560,228,658,976.08
  5. Step 5: Solve for x
    x = 3,560,228,658,976.08/2,099,690.78
  6. Step 6: Final answer
    x = 1,695,596.65

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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.