Home / 1,393,010.56-2,089,169.79-786,065.32

Finding the Fourth Proportional to 1,393,010.56, 2,089,169.79 and 786,065.32

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Solution

The fourth proportional to 1,393,010.56, 2,089,169.79 and 786,065.32 is: 1,178,902.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,010.56 : 2,089,169.79 = 786,065.32 : x
  2. Step 2: Convert to fraction form
    1,393,010.56/2,089,169.79 = 786,065.32/x
  3. Step 3: Cross multiply
    1,393,010.56x = 2,089,169.79 × 786,065.32
  4. Step 4: Simplify right side
    1,393,010.56x = 1,642,223,907,422.82
  5. Step 5: Solve for x
    x = 1,642,223,907,422.82/1,393,010.56
  6. Step 6: Final answer
    x = 1,178,902.70

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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.