Finding the Fourth Proportional to 451,093.23, 676,639.58 and 421,199.70
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Solution
The fourth proportional to 451,093.23, 676,639.58 and 421,199.70 is: 631,799.30
Step by Step Solution
- Step 1: Write the proportion equation
451,093.23 : 676,639.58 = 421,199.70 : x - Step 2: Convert to fraction form
451,093.23/676,639.58 = 421,199.70/x - Step 3: Cross multiply
451,093.23x = 676,639.58 × 421,199.70 - Step 4: Simplify right side
451,093.23x = 285,000,385,998.13 - Step 5: Solve for x
x = 285,000,385,998.13/451,093.23 - Step 6: Final answer
x = 631,799.30
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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.