Finding the Fourth Proportional to 659,731.09, 988,465.56 and 443,183.98
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Solution
The fourth proportional to 659,731.09, 988,465.56 and 443,183.98 is: 664,016.15
Step by Step Solution
- Step 1: Write the proportion equation
659,731.09 : 988,465.56 = 443,183.98 : x - Step 2: Convert to fraction form
659,731.09/988,465.56 = 443,183.98/x - Step 3: Cross multiply
659,731.09x = 988,465.56 × 443,183.98 - Step 4: Simplify right side
659,731.09x = 438,072,100,973.73 - Step 5: Solve for x
x = 438,072,100,973.73/659,731.09 - Step 6: Final answer
x = 664,016.15
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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.