Finding the Fourth Proportional to 711,418.26, 1,067,129.19 and 290,694.14
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Solution
The fourth proportional to 711,418.26, 1,067,129.19 and 290,694.14 is: 436,041.95
Step by Step Solution
- Step 1: Write the proportion equation
711,418.26 : 1,067,129.19 = 290,694.14 : x - Step 2: Convert to fraction form
711,418.26/1,067,129.19 = 290,694.14/x - Step 3: Cross multiply
711,418.26x = 1,067,129.19 × 290,694.14 - Step 4: Simplify right side
711,418.26x = 310,208,202,155.95 - Step 5: Solve for x
x = 310,208,202,155.95/711,418.26 - Step 6: Final answer
x = 436,041.95
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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.