Finding the Fourth Proportional to 782,185.06, 1,079,198.19 and 442,646.02
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Solution
The fourth proportional to 782,185.06, 1,079,198.19 and 442,646.02 is: 610,728.60
Step by Step Solution
- Step 1: Write the proportion equation
782,185.06 : 1,079,198.19 = 442,646.02 : x - Step 2: Convert to fraction form
782,185.06/1,079,198.19 = 442,646.02/x - Step 3: Cross multiply
782,185.06x = 1,079,198.19 × 442,646.02 - Step 4: Simplify right side
782,185.06x = 477,702,783,594.70 - Step 5: Solve for x
x = 477,702,783,594.70/782,185.06 - Step 6: Final answer
x = 610,728.60
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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.