Finding the Fourth Proportional to 438,775.40, 657,644.70 and 327,837.80
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Solution
The fourth proportional to 438,775.40, 657,644.70 and 327,837.80 is: 491,369.37
Step by Step Solution
- Step 1: Write the proportion equation
438,775.40 : 657,644.70 = 327,837.80 : x - Step 2: Convert to fraction form
438,775.40/657,644.70 = 327,837.80/x - Step 3: Cross multiply
438,775.40x = 657,644.70 × 327,837.80 - Step 4: Simplify right side
438,775.40x = 215,600,791,629.66 - Step 5: Solve for x
x = 215,600,791,629.66/438,775.40 - Step 6: Final answer
x = 491,369.37
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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.