Finding the Fourth Proportional to 782,105.63, 1,079,305.76 and 424,409.63
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Solution
The fourth proportional to 782,105.63, 1,079,305.76 and 424,409.63 is: 585,685.28
Step by Step Solution
- Step 1: Write the proportion equation
782,105.63 : 1,079,305.76 = 424,409.63 : x - Step 2: Convert to fraction form
782,105.63/1,079,305.76 = 424,409.63/x - Step 3: Cross multiply
782,105.63x = 1,079,305.76 × 424,409.63 - Step 4: Simplify right side
782,105.63x = 458,067,753,922.96 - Step 5: Solve for x
x = 458,067,753,922.96/782,105.63 - Step 6: Final answer
x = 585,685.28
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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.