Finding the Fourth Proportional to 407,769.75, 562,722.27 and 228,921.75
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Solution
The fourth proportional to 407,769.75, 562,722.27 and 228,921.75 is: 315,912.02
Step by Step Solution
- Step 1: Write the proportion equation
407,769.75 : 562,722.27 = 228,921.75 : x - Step 2: Convert to fraction form
407,769.75/562,722.27 = 228,921.75/x - Step 3: Cross multiply
407,769.75x = 562,722.27 × 228,921.75 - Step 4: Simplify right side
407,769.75x = 128,819,366,812.37 - Step 5: Solve for x
x = 128,819,366,812.37/407,769.75 - Step 6: Final answer
x = 315,912.02
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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.