Finding the Third Proportional to 428,080 and 922,388
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Solution
The third proportional to 428,080 and 922,388 is: 1,987,478.09
Step by Step Solution
- Step 1: Write the proportion equation
428,080 : 922,388 = 922,388 : x - Step 2: Convert to fraction form
428,080/922,388 = 922,388/x - Step 3: Cross multiply
428,080x = 922,388 × 922,388 - Step 4: Simplify right side
428,080x = 850,799,622,544 - Step 5: Solve for x
x = 850,799,622,544/428,080 - Step 6: Final answer
x = 1,987,478.09
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.