Finding the Fourth Proportional to 814,811.80, 1,222,217.70 and 341,447.80
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Solution
The fourth proportional to 814,811.80, 1,222,217.70 and 341,447.80 is: 512,171.70
Step by Step Solution
- Step 1: Write the proportion equation
814,811.80 : 1,222,217.70 = 341,447.80 : x - Step 2: Convert to fraction form
814,811.80/1,222,217.70 = 341,447.80/x - Step 3: Cross multiply
814,811.80x = 1,222,217.70 × 341,447.80 - Step 4: Simplify right side
814,811.80x = 417,323,544,786.06 - Step 5: Solve for x
x = 417,323,544,786.06/814,811.80 - Step 6: Final answer
x = 512,171.70
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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.