Finding the Fourth Proportional to 921,634.20, 1,382,645.70 and 290,611.80
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Solution
The fourth proportional to 921,634.20, 1,382,645.70 and 290,611.80 is: 435,979.00
Step by Step Solution
- Step 1: Write the proportion equation
921,634.20 : 1,382,645.70 = 290,611.80 : x - Step 2: Convert to fraction form
921,634.20/1,382,645.70 = 290,611.80/x - Step 3: Cross multiply
921,634.20x = 1,382,645.70 × 290,611.80 - Step 4: Simplify right side
921,634.20x = 401,813,155,639.26 - Step 5: Solve for x
x = 401,813,155,639.26/921,634.20 - Step 6: Final answer
x = 435,979.00
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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.