Finding the Fourth Proportional to 811,168.13, 1,119,382.68 and 443,632.71
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Solution
The fourth proportional to 811,168.13, 1,119,382.68 and 443,632.71 is: 612,197.09
Step by Step Solution
- Step 1: Write the proportion equation
811,168.13 : 1,119,382.68 = 443,632.71 : x - Step 2: Convert to fraction form
811,168.13/1,119,382.68 = 443,632.71/x - Step 3: Cross multiply
811,168.13x = 1,119,382.68 × 443,632.71 - Step 4: Simplify right side
811,168.13x = 496,594,771,855.46 - Step 5: Solve for x
x = 496,594,771,855.46/811,168.13 - Step 6: Final answer
x = 612,197.09
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1.5x scale
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.