Finding the Fourth Proportional to 782,232.68, 1,079,391.86 and 438,020.75
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Solution
The fourth proportional to 782,232.68, 1,079,391.86 and 438,020.75 is: 604,418.66
Step by Step Solution
- Step 1: Write the proportion equation
782,232.68 : 1,079,391.86 = 438,020.75 : x - Step 2: Convert to fraction form
782,232.68/1,079,391.86 = 438,020.75/x - Step 3: Cross multiply
782,232.68x = 1,079,391.86 × 438,020.75 - Step 4: Simplify right side
782,232.68x = 472,796,024,474.03 - Step 5: Solve for x
x = 472,796,024,474.03/782,232.68 - Step 6: Final answer
x = 604,418.66
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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.