Finding the Fourth Proportional to 658,074.26, 908,203.80 and 399,891.62
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Solution
The fourth proportional to 658,074.26, 908,203.80 and 399,891.62 is: 551,887.70
Step by Step Solution
- Step 1: Write the proportion equation
658,074.26 : 908,203.80 = 399,891.62 : x - Step 2: Convert to fraction form
658,074.26/908,203.80 = 399,891.62/x - Step 3: Cross multiply
658,074.26x = 908,203.80 × 399,891.62 - Step 4: Simplify right side
658,074.26x = 363,183,088,872.16 - Step 5: Solve for x
x = 363,183,088,872.16/658,074.26 - Step 6: Final answer
x = 551,887.70
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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.