Finding the Fourth Proportional to 681,979.50, 1,023,010.26 and 208,668.96
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Solution
The fourth proportional to 681,979.50, 1,023,010.26 and 208,668.96 is: 313,015.99
Step by Step Solution
- Step 1: Write the proportion equation
681,979.50 : 1,023,010.26 = 208,668.96 : x - Step 2: Convert to fraction form
681,979.50/1,023,010.26 = 208,668.96/x - Step 3: Cross multiply
681,979.50x = 1,023,010.26 × 208,668.96 - Step 4: Simplify right side
681,979.50x = 213,470,486,241.02 - Step 5: Solve for x
x = 213,470,486,241.02/681,979.50 - Step 6: Final answer
x = 313,015.99
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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.