Finding the Fourth Proportional to 1,129,016.33, 1,558,043.99 and 612,770.18
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Solution
The fourth proportional to 1,129,016.33, 1,558,043.99 and 612,770.18 is: 845,623.65
Step by Step Solution
- Step 1: Write the proportion equation
1,129,016.33 : 1,558,043.99 = 612,770.18 : x - Step 2: Convert to fraction form
1,129,016.33/1,558,043.99 = 612,770.18/x - Step 3: Cross multiply
1,129,016.33x = 1,558,043.99 × 612,770.18 - Step 4: Simplify right side
1,129,016.33x = 954,722,901,627.25 - Step 5: Solve for x
x = 954,722,901,627.25/1,129,016.33 - Step 6: Final answer
x = 845,623.65
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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.