Finding the Fourth Proportional to 720,232.02, 993,893.49 and 397,935.18
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Solution
The fourth proportional to 720,232.02, 993,893.49 and 397,935.18 is: 549,135.80
Step by Step Solution
- Step 1: Write the proportion equation
720,232.02 : 993,893.49 = 397,935.18 : x - Step 2: Convert to fraction form
720,232.02/993,893.49 = 397,935.18/x - Step 3: Cross multiply
720,232.02x = 993,893.49 × 397,935.18 - Step 4: Simplify right side
720,232.02x = 395,505,184,843.98 - Step 5: Solve for x
x = 395,505,184,843.98/720,232.02 - Step 6: Final answer
x = 549,135.80
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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.