Home / 1,428,418.44-1,971,211.87-783,849.41

Finding the Fourth Proportional to 1,428,418.44, 1,971,211.87 and 783,849.41

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Solution

The fourth proportional to 1,428,418.44, 1,971,211.87 and 783,849.41 is: 1,081,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,418.44 : 1,971,211.87 = 783,849.41 : x
  2. Step 2: Convert to fraction form
    1,428,418.44/1,971,211.87 = 783,849.41/x
  3. Step 3: Cross multiply
    1,428,418.44x = 1,971,211.87 × 783,849.41
  4. Step 4: Simplify right side
    1,428,418.44x = 1,545,133,261,284.50
  5. Step 5: Solve for x
    x = 1,545,133,261,284.50/1,428,418.44
  6. Step 6: Final answer
    x = 1,081,709.13

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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.