Finding the Fourth Proportional to 878,609.33, 1,318,357.62 and 398,531.19
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Solution
The fourth proportional to 878,609.33, 1,318,357.62 and 398,531.19 is: 597,998.02
Step by Step Solution
- Step 1: Write the proportion equation
878,609.33 : 1,318,357.62 = 398,531.19 : x - Step 2: Convert to fraction form
878,609.33/1,318,357.62 = 398,531.19/x - Step 3: Cross multiply
878,609.33x = 1,318,357.62 × 398,531.19 - Step 4: Simplify right side
878,609.33x = 525,406,636,088.01 - Step 5: Solve for x
x = 525,406,636,088.01/878,609.33 - Step 6: Final answer
x = 597,998.02
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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.