Finding the Fourth Proportional to 878,955.27, 1,318,564.51 and 318,120.99
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Solution
The fourth proportional to 878,955.27, 1,318,564.51 and 318,120.99 is: 477,229.11
Step by Step Solution
- Step 1: Write the proportion equation
878,955.27 : 1,318,564.51 = 318,120.99 : x - Step 2: Convert to fraction form
878,955.27/1,318,564.51 = 318,120.99/x - Step 3: Cross multiply
878,955.27x = 1,318,564.51 × 318,120.99 - Step 4: Simplify right side
878,955.27x = 419,463,041,560.15 - Step 5: Solve for x
x = 419,463,041,560.15/878,955.27 - Step 6: Final answer
x = 477,229.11
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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.