Finding the Third Proportional to 657,618 and 990,771.75
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Solution
The third proportional to 657,618 and 990,771.75 is: 1,492,703.45
Step by Step Solution
- Step 1: Write the proportion equation
657,618 : 990,771.75 = 990,771.75 : x - Step 2: Convert to fraction form
657,618/990,771.75 = 990,771.75/x - Step 3: Cross multiply
657,618x = 990,771.75 × 990,771.75 - Step 4: Simplify right side
657,618x = 981,628,660,598.06 - Step 5: Solve for x
x = 981,628,660,598.06/657,618 - Step 6: Final answer
x = 1,492,703.45
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.