Finding the Fourth Proportional to 1,431,290.70, 2,146,603.71 and 420,141.09
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Solution
The fourth proportional to 1,431,290.70, 2,146,603.71 and 420,141.09 is: 630,114.08
Step by Step Solution
- Step 1: Write the proportion equation
1,431,290.70 : 2,146,603.71 = 420,141.09 : x - Step 2: Convert to fraction form
1,431,290.70/2,146,603.71 = 420,141.09/x - Step 3: Cross multiply
1,431,290.70x = 2,146,603.71 × 420,141.09 - Step 4: Simplify right side
1,431,290.70x = 901,876,422,517.44 - Step 5: Solve for x
x = 901,876,422,517.44/1,431,290.70 - Step 6: Final answer
x = 630,114.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.