Home / 1,259,814.80-1,890,505.88-511,860.80

Finding the Fourth Proportional to 1,259,814.80, 1,890,505.88 and 511,860.80

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Solution

The fourth proportional to 1,259,814.80, 1,890,505.88 and 511,860.80 is: 768,109.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,814.80 : 1,890,505.88 = 511,860.80 : x
  2. Step 2: Convert to fraction form
    1,259,814.80/1,890,505.88 = 511,860.80/x
  3. Step 3: Cross multiply
    1,259,814.80x = 1,890,505.88 × 511,860.80
  4. Step 4: Simplify right side
    1,259,814.80x = 967,675,856,227.94
  5. Step 5: Solve for x
    x = 967,675,856,227.94/1,259,814.80
  6. Step 6: Final answer
    x = 768,109.61

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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.