Finding the Fourth Proportional to 715,374.48, 987,241.02 and 393,096.14
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Solution
The fourth proportional to 715,374.48, 987,241.02 and 393,096.14 is: 542,485.99
Step by Step Solution
- Step 1: Write the proportion equation
715,374.48 : 987,241.02 = 393,096.14 : x - Step 2: Convert to fraction form
715,374.48/987,241.02 = 393,096.14/x - Step 3: Cross multiply
715,374.48x = 987,241.02 × 393,096.14 - Step 4: Simplify right side
715,374.48x = 388,080,634,211.66 - Step 5: Solve for x
x = 388,080,634,211.66/715,374.48 - Step 6: Final answer
x = 542,485.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.