Finding the Third Proportional to 290,499.75 and 636,990.75
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Solution
The third proportional to 290,499.75 and 636,990.75 is: 1,396,755.82
Step by Step Solution
- Step 1: Write the proportion equation
290,499.75 : 636,990.75 = 636,990.75 : x - Step 2: Convert to fraction form
290,499.75/636,990.75 = 636,990.75/x - Step 3: Cross multiply
290,499.75x = 636,990.75 × 636,990.75 - Step 4: Simplify right side
290,499.75x = 405,757,215,585.56 - Step 5: Solve for x
x = 405,757,215,585.56/290,499.75 - Step 6: Final answer
x = 1,396,755.82
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.