Finding the Fourth Proportional to 720,850.68, 994,733.76 and 398,541.96
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Solution
The fourth proportional to 720,850.68, 994,733.76 and 398,541.96 is: 549,965.69
Step by Step Solution
- Step 1: Write the proportion equation
720,850.68 : 994,733.76 = 398,541.96 : x - Step 2: Convert to fraction form
720,850.68/994,733.76 = 398,541.96/x - Step 3: Cross multiply
720,850.68x = 994,733.76 × 398,541.96 - Step 4: Simplify right side
720,850.68x = 396,443,142,388.57 - Step 5: Solve for x
x = 396,443,142,388.57/720,850.68 - Step 6: Final answer
x = 549,965.69
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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.