Finding the Fourth Proportional to 911,202.40, 1,366,803.60 and 280,115.20
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Solution
The fourth proportional to 911,202.40, 1,366,803.60 and 280,115.20 is: 420,172.80
Step by Step Solution
- Step 1: Write the proportion equation
911,202.40 : 1,366,803.60 = 280,115.20 : x - Step 2: Convert to fraction form
911,202.40/1,366,803.60 = 280,115.20/x - Step 3: Cross multiply
911,202.40x = 1,366,803.60 × 280,115.20 - Step 4: Simplify right side
911,202.40x = 382,862,463,774.72 - Step 5: Solve for x
x = 382,862,463,774.72/911,202.40 - Step 6: Final answer
x = 420,172.80
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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.