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Finding the Fourth Proportional to 622,522.33, 859,112.79 and 380,728.97

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Solution

The fourth proportional to 622,522.33, 859,112.79 and 380,728.97 is: 525,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,522.33 : 859,112.79 = 380,728.97 : x
  2. Step 2: Convert to fraction form
    622,522.33/859,112.79 = 380,728.97/x
  3. Step 3: Cross multiply
    622,522.33x = 859,112.79 × 380,728.97
  4. Step 4: Simplify right side
    622,522.33x = 327,089,125,148.90
  5. Step 5: Solve for x
    x = 327,089,125,148.90/622,522.33
  6. Step 6: Final answer
    x = 525,425.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.