Finding the Fourth Proportional to 812,895.63, 1,218,678.84 and 307,170.11
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Solution
The fourth proportional to 812,895.63, 1,218,678.84 and 307,170.11 is: 460,504.02
Step by Step Solution
- Step 1: Write the proportion equation
812,895.63 : 1,218,678.84 = 307,170.11 : x - Step 2: Convert to fraction form
812,895.63/1,218,678.84 = 307,170.11/x - Step 3: Cross multiply
812,895.63x = 1,218,678.84 × 307,170.11 - Step 4: Simplify right side
812,895.63x = 374,341,707,244.08 - Step 5: Solve for x
x = 374,341,707,244.08/812,895.63 - Step 6: Final answer
x = 460,504.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.