Finding the Fourth Proportional to 324,471.69, 486,724.86 and 99,986.31
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Solution
The fourth proportional to 324,471.69, 486,724.86 and 99,986.31 is: 149,984.80
Step by Step Solution
- Step 1: Write the proportion equation
324,471.69 : 486,724.86 = 99,986.31 : x - Step 2: Convert to fraction form
324,471.69/486,724.86 = 99,986.31/x - Step 3: Cross multiply
324,471.69x = 486,724.86 × 99,986.31 - Step 4: Simplify right side
324,471.69x = 48,665,822,736.67 - Step 5: Solve for x
x = 48,665,822,736.67/324,471.69 - Step 6: Final answer
x = 149,984.80
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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.