Finding the Fourth Proportional to 1,245,125.84, 1,729,873.82 and 1,230,195.92
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Solution
The fourth proportional to 1,245,125.84, 1,729,873.82 and 1,230,195.92 is: 1,709,131.44
Step by Step Solution
- Step 1: Write the proportion equation
1,245,125.84 : 1,729,873.82 = 1,230,195.92 : x - Step 2: Convert to fraction form
1,245,125.84/1,729,873.82 = 1,230,195.92/x - Step 3: Cross multiply
1,245,125.84x = 1,729,873.82 × 1,230,195.92 - Step 4: Simplify right side
1,245,125.84x = 2,128,083,715,478.81 - Step 5: Solve for x
x = 2,128,083,715,478.81/1,245,125.84 - Step 6: Final answer
x = 1,709,131.44
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.