Home / 863,825.36-1,190,464.75-621,687.56

Finding the Fourth Proportional to 863,825.36, 1,190,464.75 and 621,687.56

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Solution

The fourth proportional to 863,825.36, 1,190,464.75 and 621,687.56 is: 856,767.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,825.36 : 1,190,464.75 = 621,687.56 : x
  2. Step 2: Convert to fraction form
    863,825.36/1,190,464.75 = 621,687.56/x
  3. Step 3: Cross multiply
    863,825.36x = 1,190,464.75 × 621,687.56
  4. Step 4: Simplify right side
    863,825.36x = 740,097,117,021.30
  5. Step 5: Solve for x
    x = 740,097,117,021.30/863,825.36
  6. Step 6: Final answer
    x = 856,767.06

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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.