Finding the Fourth Proportional to 811,176.23, 1,222,240.41 and 672,115.84
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Solution
The fourth proportional to 811,176.23, 1,222,240.41 and 672,115.84 is: 1,012,711.05
Step by Step Solution
- Step 1: Write the proportion equation
811,176.23 : 1,222,240.41 = 672,115.84 : x - Step 2: Convert to fraction form
811,176.23/1,222,240.41 = 672,115.84/x - Step 3: Cross multiply
811,176.23x = 1,222,240.41 × 672,115.84 - Step 4: Simplify right side
811,176.23x = 821,487,136,793.49 - Step 5: Solve for x
x = 821,487,136,793.49/811,176.23 - Step 6: Final answer
x = 1,012,711.05
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.