Finding the Fourth Proportional to 658,485.21, 987,049.85 and 258,964.05
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Solution
The fourth proportional to 658,485.21, 987,049.85 and 258,964.05 is: 388,179.45
Step by Step Solution
- Step 1: Write the proportion equation
658,485.21 : 987,049.85 = 258,964.05 : x - Step 2: Convert to fraction form
658,485.21/987,049.85 = 258,964.05/x - Step 3: Cross multiply
658,485.21x = 987,049.85 × 258,964.05 - Step 4: Simplify right side
658,485.21x = 255,610,425,413.07 - Step 5: Solve for x
x = 255,610,425,413.07/658,485.21 - Step 6: Final answer
x = 388,179.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.