Finding the Fourth Proportional to 711,492.08, 981,882.49 and 389,194.81
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Solution
The fourth proportional to 711,492.08, 981,882.49 and 389,194.81 is: 537,101.65
Step by Step Solution
- Step 1: Write the proportion equation
711,492.08 : 981,882.49 = 389,194.81 : x - Step 2: Convert to fraction form
711,492.08/981,882.49 = 389,194.81/x - Step 3: Cross multiply
711,492.08x = 981,882.49 × 389,194.81 - Step 4: Simplify right side
711,492.08x = 382,143,569,137.88 - Step 5: Solve for x
x = 382,143,569,137.88/711,492.08 - Step 6: Final answer
x = 537,101.65
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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.