Finding the Fourth Proportional to 775,960.45, 1,163,989.87 and 243,502.49
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Solution
The fourth proportional to 775,960.45, 1,163,989.87 and 243,502.49 is: 365,269.17
Step by Step Solution
- Step 1: Write the proportion equation
775,960.45 : 1,163,989.87 = 243,502.49 : x - Step 2: Convert to fraction form
775,960.45/1,163,989.87 = 243,502.49/x - Step 3: Cross multiply
775,960.45x = 1,163,989.87 × 243,502.49 - Step 4: Simplify right side
775,960.45x = 283,434,431,679.78 - Step 5: Solve for x
x = 283,434,431,679.78/775,960.45 - Step 6: Final answer
x = 365,269.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.