Finding the Fourth Proportional to 849,717.92, 1,274,576.96 and 317,280.64
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Solution
The fourth proportional to 849,717.92, 1,274,576.96 and 317,280.64 is: 475,920.99
Step by Step Solution
- Step 1: Write the proportion equation
849,717.92 : 1,274,576.96 = 317,280.64 : x - Step 2: Convert to fraction form
849,717.92/1,274,576.96 = 317,280.64/x - Step 3: Cross multiply
849,717.92x = 1,274,576.96 × 317,280.64 - Step 4: Simplify right side
849,717.92x = 404,398,593,598.05 - Step 5: Solve for x
x = 404,398,593,598.05/849,717.92 - Step 6: Final answer
x = 475,920.99
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1.5x scale
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.