Finding the Fourth Proportional to 1,558,922.81, 2,151,494.96 and 1,296,815.09
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Solution
The fourth proportional to 1,558,922.81, 2,151,494.96 and 1,296,815.09 is: 1,789,755.79
Step by Step Solution
- Step 1: Write the proportion equation
1,558,922.81 : 2,151,494.96 = 1,296,815.09 : x - Step 2: Convert to fraction form
1,558,922.81/2,151,494.96 = 1,296,815.09/x - Step 3: Cross multiply
1,558,922.81x = 2,151,494.96 × 1,296,815.09 - Step 4: Simplify right side
1,558,922.81x = 2,790,091,112,945.40 - Step 5: Solve for x
x = 2,790,091,112,945.40/1,558,922.81 - Step 6: Final answer
x = 1,789,755.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.