Finding the Fourth Proportional to 674,791.56, 931,213.26 and 388,305.96
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Solution
The fourth proportional to 674,791.56, 931,213.26 and 388,305.96 is: 535,862.75
Step by Step Solution
- Step 1: Write the proportion equation
674,791.56 : 931,213.26 = 388,305.96 : x - Step 2: Convert to fraction form
674,791.56/931,213.26 = 388,305.96/x - Step 3: Cross multiply
674,791.56x = 931,213.26 × 388,305.96 - Step 4: Simplify right side
674,791.56x = 361,595,658,889.03 - Step 5: Solve for x
x = 361,595,658,889.03/674,791.56 - Step 6: Final answer
x = 535,862.75
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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.