Finding the Third Proportional to 405,686.25 and 630,645.75
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Solution
The third proportional to 405,686.25 and 630,645.75 is: 980,348.88
Step by Step Solution
- Step 1: Write the proportion equation
405,686.25 : 630,645.75 = 630,645.75 : x - Step 2: Convert to fraction form
405,686.25/630,645.75 = 630,645.75/x - Step 3: Cross multiply
405,686.25x = 630,645.75 × 630,645.75 - Step 4: Simplify right side
405,686.25x = 397,714,061,993.06 - Step 5: Solve for x
x = 397,714,061,993.06/405,686.25 - Step 6: Final answer
x = 980,348.88
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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.