Finding the Fourth Proportional to 814,338.76, 1,123,790.36 and 451,769.80
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Solution
The fourth proportional to 814,338.76, 1,123,790.36 and 451,769.80 is: 623,443.92
Step by Step Solution
- Step 1: Write the proportion equation
814,338.76 : 1,123,790.36 = 451,769.80 : x - Step 2: Convert to fraction form
814,338.76/1,123,790.36 = 451,769.80/x - Step 3: Cross multiply
814,338.76x = 1,123,790.36 × 451,769.80 - Step 4: Simplify right side
814,338.76x = 507,694,546,179.13 - Step 5: Solve for x
x = 507,694,546,179.13/814,338.76 - Step 6: Final answer
x = 623,443.92
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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.