Finding the Fourth Proportional to 538,608.36, 743,235.84 and 312,268.44
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Solution
The fourth proportional to 538,608.36, 743,235.84 and 312,268.44 is: 430,905.11
Step by Step Solution
- Step 1: Write the proportion equation
538,608.36 : 743,235.84 = 312,268.44 : x - Step 2: Convert to fraction form
538,608.36/743,235.84 = 312,268.44/x - Step 3: Cross multiply
538,608.36x = 743,235.84 × 312,268.44 - Step 4: Simplify right side
538,608.36x = 232,089,096,308.89 - Step 5: Solve for x
x = 232,089,096,308.89/538,608.36 - Step 6: Final answer
x = 430,905.11
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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.