Finding the Fourth Proportional to 912,646.20, 1,369,163.70 and 281,623.80
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Solution
The fourth proportional to 912,646.20, 1,369,163.70 and 281,623.80 is: 422,495.69
Step by Step Solution
- Step 1: Write the proportion equation
912,646.20 : 1,369,163.70 = 281,623.80 : x - Step 2: Convert to fraction form
912,646.20/1,369,163.70 = 281,623.80/x - Step 3: Cross multiply
912,646.20x = 1,369,163.70 × 281,623.80 - Step 4: Simplify right side
912,646.20x = 385,589,084,016.06 - Step 5: Solve for x
x = 385,589,084,016.06/912,646.20 - Step 6: Final answer
x = 422,495.69
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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.