Finding the Fourth Proportional to 520,944.75, 718,675.74 and 305,988.03
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Solution
The fourth proportional to 520,944.75, 718,675.74 and 305,988.03 is: 422,129.55
Step by Step Solution
- Step 1: Write the proportion equation
520,944.75 : 718,675.74 = 305,988.03 : x - Step 2: Convert to fraction form
520,944.75/718,675.74 = 305,988.03/x - Step 3: Cross multiply
520,944.75x = 718,675.74 × 305,988.03 - Step 4: Simplify right side
520,944.75x = 219,906,173,891.39 - Step 5: Solve for x
x = 219,906,173,891.39/520,944.75 - Step 6: Final answer
x = 422,129.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.