Finding the Fourth Proportional to 665,168.05, 917,640.26 and 407,057.41
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Solution
The fourth proportional to 665,168.05, 917,640.26 and 407,057.41 is: 561,560.75
Step by Step Solution
- Step 1: Write the proportion equation
665,168.05 : 917,640.26 = 407,057.41 : x - Step 2: Convert to fraction form
665,168.05/917,640.26 = 407,057.41/x - Step 3: Cross multiply
665,168.05x = 917,640.26 × 407,057.41 - Step 4: Simplify right side
665,168.05x = 373,532,262,959.13 - Step 5: Solve for x
x = 373,532,262,959.13/665,168.05 - Step 6: Final answer
x = 561,560.75
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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.