Finding the Fourth Proportional to 879,764.31, 1,326,239.08 and 821,174.31
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Solution
The fourth proportional to 879,764.31, 1,326,239.08 and 821,174.31 is: 1,237,915.03
Step by Step Solution
- Step 1: Write the proportion equation
879,764.31 : 1,326,239.08 = 821,174.31 : x - Step 2: Convert to fraction form
879,764.31/1,326,239.08 = 821,174.31/x - Step 3: Cross multiply
879,764.31x = 1,326,239.08 × 821,174.31 - Step 4: Simplify right side
879,764.31x = 1,089,073,459,361.10 - Step 5: Solve for x
x = 1,089,073,459,361.10/879,764.31 - Step 6: Final answer
x = 1,237,915.03
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.