Finding the Fourth Proportional to 811,930.68, 1,120,425.75 and 444,399.66
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Solution
The fourth proportional to 811,930.68, 1,120,425.75 and 444,399.66 is: 613,250.41
Step by Step Solution
- Step 1: Write the proportion equation
811,930.68 : 1,120,425.75 = 444,399.66 : x - Step 2: Convert to fraction form
811,930.68/1,120,425.75 = 444,399.66/x - Step 3: Cross multiply
811,930.68x = 1,120,425.75 × 444,399.66 - Step 4: Simplify right side
811,930.68x = 497,916,822,355.25 - Step 5: Solve for x
x = 497,916,822,355.25/811,930.68 - Step 6: Final answer
x = 613,250.41
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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.