Finding the Fourth Proportional to 686,440.88, 1,029,809.98 and 281,634.02
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Solution
The fourth proportional to 686,440.88, 1,029,809.98 and 281,634.02 is: 422,512.02
Step by Step Solution
- Step 1: Write the proportion equation
686,440.88 : 1,029,809.98 = 281,634.02 : x - Step 2: Convert to fraction form
686,440.88/1,029,809.98 = 281,634.02/x - Step 3: Cross multiply
686,440.88x = 1,029,809.98 × 281,634.02 - Step 4: Simplify right side
686,440.88x = 290,029,524,503.52 - Step 5: Solve for x
x = 290,029,524,503.52/686,440.88 - Step 6: Final answer
x = 422,512.02
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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.