Finding the Fourth Proportional to 529,520.58, 730,745.82 and 287,803.08
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Solution
The fourth proportional to 529,520.58, 730,745.82 and 287,803.08 is: 397,172.28
Step by Step Solution
- Step 1: Write the proportion equation
529,520.58 : 730,745.82 = 287,803.08 : x - Step 2: Convert to fraction form
529,520.58/730,745.82 = 287,803.08/x - Step 3: Cross multiply
529,520.58x = 730,745.82 × 287,803.08 - Step 4: Simplify right side
529,520.58x = 210,310,897,693.13 - Step 5: Solve for x
x = 210,310,897,693.13/529,520.58 - Step 6: Final answer
x = 397,172.28
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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.