Finding the Fourth Proportional to 706,603.50, 1,059,284.79 and 280,440.09
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Solution
The fourth proportional to 706,603.50, 1,059,284.79 and 280,440.09 is: 420,413.88
Step by Step Solution
- Step 1: Write the proportion equation
706,603.50 : 1,059,284.79 = 280,440.09 : x - Step 2: Convert to fraction form
706,603.50/1,059,284.79 = 280,440.09/x - Step 3: Cross multiply
706,603.50x = 1,059,284.79 × 280,440.09 - Step 4: Simplify right side
706,603.50x = 297,065,921,843.23 - Step 5: Solve for x
x = 297,065,921,843.23/706,603.50 - Step 6: Final answer
x = 420,413.88
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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.