Finding the Fourth Proportional to 916,414.74, 1,374,819.84 and 276,665.40
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Solution
The fourth proportional to 916,414.74, 1,374,819.84 and 276,665.40 is: 415,057.79
Step by Step Solution
- Step 1: Write the proportion equation
916,414.74 : 1,374,819.84 = 276,665.40 : x - Step 2: Convert to fraction form
916,414.74/1,374,819.84 = 276,665.40/x - Step 3: Cross multiply
916,414.74x = 1,374,819.84 × 276,665.40 - Step 4: Simplify right side
916,414.74x = 380,365,080,961.54 - Step 5: Solve for x
x = 380,365,080,961.54/916,414.74 - Step 6: Final answer
x = 415,057.79
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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.