Finding the Fourth Proportional to 665,769.84, 998,906.33 and 399,715.80
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Solution
The fourth proportional to 665,769.84, 998,906.33 and 399,715.80 is: 599,724.74
Step by Step Solution
- Step 1: Write the proportion equation
665,769.84 : 998,906.33 = 399,715.80 : x - Step 2: Convert to fraction form
665,769.84/998,906.33 = 399,715.80/x - Step 3: Cross multiply
665,769.84x = 998,906.33 × 399,715.80 - Step 4: Simplify right side
665,769.84x = 399,278,642,821.01 - Step 5: Solve for x
x = 399,278,642,821.01/665,769.84 - Step 6: Final answer
x = 599,724.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.