Finding the Fourth Proportional to 874,597.21, 1,206,531.79 and 511,798.55
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Solution
The fourth proportional to 874,597.21, 1,206,531.79 and 511,798.55 is: 706,040.69
Step by Step Solution
- Step 1: Write the proportion equation
874,597.21 : 1,206,531.79 = 511,798.55 : x - Step 2: Convert to fraction form
874,597.21/1,206,531.79 = 511,798.55/x - Step 3: Cross multiply
874,597.21x = 1,206,531.79 × 511,798.55 - Step 4: Simplify right side
874,597.21x = 617,501,213,338.75 - Step 5: Solve for x
x = 617,501,213,338.75/874,597.21 - Step 6: Final answer
x = 706,040.69
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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.