Home / 1,819,122.80-2,728,692.30-471,189.65

Finding the Fourth Proportional to 1,819,122.80, 2,728,692.30 and 471,189.65

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Solution

The fourth proportional to 1,819,122.80, 2,728,692.30 and 471,189.65 is: 706,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,122.80 : 2,728,692.30 = 471,189.65 : x
  2. Step 2: Convert to fraction form
    1,819,122.80/2,728,692.30 = 471,189.65/x
  3. Step 3: Cross multiply
    1,819,122.80x = 2,728,692.30 × 471,189.65
  4. Step 4: Simplify right side
    1,819,122.80x = 1,285,731,569,794.70
  5. Step 5: Solve for x
    x = 1,285,731,569,794.70/1,819,122.80
  6. Step 6: Final answer
    x = 706,786.57

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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.