Finding the Third Proportional to 405,690.75 and 630,649.13
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Solution
The third proportional to 405,690.75 and 630,649.13 is: 980,348.50
Step by Step Solution
- Step 1: Write the proportion equation
405,690.75 : 630,649.13 = 630,649.13 : x - Step 2: Convert to fraction form
405,690.75/630,649.13 = 630,649.13/x - Step 3: Cross multiply
405,690.75x = 630,649.13 × 630,649.13 - Step 4: Simplify right side
405,690.75x = 397,718,318,863.27 - Step 5: Solve for x
x = 397,718,318,863.27/405,690.75 - Step 6: Final answer
x = 980,348.50
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.