Finding the Fourth Proportional to 1,586,374.09, 2,189,222.67 and 861,221.97
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Solution
The fourth proportional to 1,586,374.09, 2,189,222.67 and 861,221.97 is: 1,188,500.66
Step by Step Solution
- Step 1: Write the proportion equation
1,586,374.09 : 2,189,222.67 = 861,221.97 : x - Step 2: Convert to fraction form
1,586,374.09/2,189,222.67 = 861,221.97/x - Step 3: Cross multiply
1,586,374.09x = 2,189,222.67 × 861,221.97 - Step 4: Simplify right side
1,586,374.09x = 1,885,406,656,589.08 - Step 5: Solve for x
x = 1,885,406,656,589.08/1,586,374.09 - Step 6: Final answer
x = 1,188,500.66
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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.