Finding the Fourth Proportional to 416,612.42, 574,495.16 and 356,382.44
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Solution
The fourth proportional to 416,612.42, 574,495.16 and 356,382.44 is: 491,439.95
Step by Step Solution
- Step 1: Write the proportion equation
416,612.42 : 574,495.16 = 356,382.44 : x - Step 2: Convert to fraction form
416,612.42/574,495.16 = 356,382.44/x - Step 3: Cross multiply
416,612.42x = 574,495.16 × 356,382.44 - Step 4: Simplify right side
416,612.42x = 204,739,986,888.99 - Step 5: Solve for x
x = 204,739,986,888.99/416,612.42 - Step 6: Final answer
x = 491,439.95
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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.