Finding the Fourth Proportional to 1,212,435.92, 1,818,653.56 and 413,717.40
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Solution
The fourth proportional to 1,212,435.92, 1,818,653.56 and 413,717.40 is: 620,575.99
Step by Step Solution
- Step 1: Write the proportion equation
1,212,435.92 : 1,818,653.56 = 413,717.40 : x - Step 2: Convert to fraction form
1,212,435.92/1,818,653.56 = 413,717.40/x - Step 3: Cross multiply
1,212,435.92x = 1,818,653.56 × 413,717.40 - Step 4: Simplify right side
1,212,435.92x = 752,408,622,343.94 - Step 5: Solve for x
x = 752,408,622,343.94/1,212,435.92 - Step 6: Final answer
x = 620,575.99
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1.5x scale
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.