Finding the Fourth Proportional to 681,918.12, 1,022,877.18 and 680,933.97
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Solution
The fourth proportional to 681,918.12, 1,022,877.18 and 680,933.97 is: 1,021,400.95
Step by Step Solution
- Step 1: Write the proportion equation
681,918.12 : 1,022,877.18 = 680,933.97 : x - Step 2: Convert to fraction form
681,918.12/1,022,877.18 = 680,933.97/x - Step 3: Cross multiply
681,918.12x = 1,022,877.18 × 680,933.97 - Step 4: Simplify right side
681,918.12x = 696,511,812,610.51 - Step 5: Solve for x
x = 696,511,812,610.51/681,918.12 - Step 6: Final answer
x = 1,021,400.95
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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.