Finding the Fourth Proportional to 419,832.36, 579,374.69 and 228,845.75
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Solution
The fourth proportional to 419,832.36, 579,374.69 and 228,845.75 is: 315,810.41
Step by Step Solution
- Step 1: Write the proportion equation
419,832.36 : 579,374.69 = 228,845.75 : x - Step 2: Convert to fraction form
419,832.36/579,374.69 = 228,845.75/x - Step 3: Cross multiply
419,832.36x = 579,374.69 × 228,845.75 - Step 4: Simplify right side
419,832.36x = 132,587,431,422.97 - Step 5: Solve for x
x = 132,587,431,422.97/419,832.36 - Step 6: Final answer
x = 315,810.41
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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.