Finding the Fourth Proportional to 451,689.39, 676,493.88 and 261,678.05
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Solution
The fourth proportional to 451,689.39, 676,493.88 and 261,678.05 is: 391,914.45
Step by Step Solution
- Step 1: Write the proportion equation
451,689.39 : 676,493.88 = 261,678.05 : x - Step 2: Convert to fraction form
451,689.39/676,493.88 = 261,678.05/x - Step 3: Cross multiply
451,689.39x = 676,493.88 × 261,678.05 - Step 4: Simplify right side
451,689.39x = 177,023,599,355.33 - Step 5: Solve for x
x = 177,023,599,355.33/451,689.39 - Step 6: Final answer
x = 391,914.45
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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.