Finding the Fourth Proportional to 1,129,236.42, 1,558,350.49 and 612,991.33
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Solution
The fourth proportional to 1,129,236.42, 1,558,350.49 and 612,991.33 is: 845,930.33
Step by Step Solution
- Step 1: Write the proportion equation
1,129,236.42 : 1,558,350.49 = 612,991.33 : x - Step 2: Convert to fraction form
1,129,236.42/1,558,350.49 = 612,991.33/x - Step 3: Cross multiply
1,129,236.42x = 1,558,350.49 × 612,991.33 - Step 4: Simplify right side
1,129,236.42x = 955,255,339,471.25 - Step 5: Solve for x
x = 955,255,339,471.25/1,129,236.42 - Step 6: Final answer
x = 845,930.33
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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.