Finding the Third Proportional to 639,441.21 and 1,399,235.77
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Solution
The third proportional to 639,441.21 and 1,399,235.77 is: 3,061,830.70
Step by Step Solution
- Step 1: Write the proportion equation
639,441.21 : 1,399,235.77 = 1,399,235.77 : x - Step 2: Convert to fraction form
639,441.21/1,399,235.77 = 1,399,235.77/x - Step 3: Cross multiply
639,441.21x = 1,399,235.77 × 1,399,235.77 - Step 4: Simplify right side
639,441.21x = 1,957,860,727,804.18 - Step 5: Solve for x
x = 1,957,860,727,804.18/639,441.21 - Step 6: Final answer
x = 3,061,830.70
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.