Finding the Third Proportional to 438,786 and 655,308
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Solution
The third proportional to 438,786 and 655,308 is: 978,674.29
Step by Step Solution
- Step 1: Write the proportion equation
438,786 : 655,308 = 655,308 : x - Step 2: Convert to fraction form
438,786/655,308 = 655,308/x - Step 3: Cross multiply
438,786x = 655,308 × 655,308 - Step 4: Simplify right side
438,786x = 429,428,574,864 - Step 5: Solve for x
x = 429,428,574,864/438,786 - Step 6: Final answer
x = 978,674.29
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.