Finding the Fourth Proportional to 753,770.64, 1,040,243.31 and 427,146.99
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Solution
The fourth proportional to 753,770.64, 1,040,243.31 and 427,146.99 is: 589,485.42
Step by Step Solution
- Step 1: Write the proportion equation
753,770.64 : 1,040,243.31 = 427,146.99 : x - Step 2: Convert to fraction form
753,770.64/1,040,243.31 = 427,146.99/x - Step 3: Cross multiply
753,770.64x = 1,040,243.31 × 427,146.99 - Step 4: Simplify right side
753,770.64x = 444,336,798,734.14 - Step 5: Solve for x
x = 444,336,798,734.14/753,770.64 - Step 6: Final answer
x = 589,485.42
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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.