Home / 1,405,074.06-1,939,049.15-861,104.75

Finding the Fourth Proportional to 1,405,074.06, 1,939,049.15 and 861,104.75

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Solution

The fourth proportional to 1,405,074.06, 1,939,049.15 and 861,104.75 is: 1,188,353.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,074.06 : 1,939,049.15 = 861,104.75 : x
  2. Step 2: Convert to fraction form
    1,405,074.06/1,939,049.15 = 861,104.75/x
  3. Step 3: Cross multiply
    1,405,074.06x = 1,939,049.15 × 861,104.75
  4. Step 4: Simplify right side
    1,405,074.06x = 1,669,724,419,547.69
  5. Step 5: Solve for x
    x = 1,669,724,419,547.69/1,405,074.06
  6. Step 6: Final answer
    x = 1,188,353.32

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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.