Finding the Fourth Proportional to 727,759.80, 1,091,639.70 and 412,831.80
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Solution
The fourth proportional to 727,759.80, 1,091,639.70 and 412,831.80 is: 619,247.70
Step by Step Solution
- Step 1: Write the proportion equation
727,759.80 : 1,091,639.70 = 412,831.80 : x - Step 2: Convert to fraction form
727,759.80/1,091,639.70 = 412,831.80/x - Step 3: Cross multiply
727,759.80x = 1,091,639.70 × 412,831.80 - Step 4: Simplify right side
727,759.80x = 450,663,582,302.46 - Step 5: Solve for x
x = 450,663,582,302.46/727,759.80 - Step 6: Final answer
x = 619,247.70
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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.