Finding the Fourth Proportional to 638,082.18, 880,592.58 and 351,602.19
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Solution
The fourth proportional to 638,082.18, 880,592.58 and 351,602.19 is: 485,232.61
Step by Step Solution
- Step 1: Write the proportion equation
638,082.18 : 880,592.58 = 351,602.19 : x - Step 2: Convert to fraction form
638,082.18/880,592.58 = 351,602.19/x - Step 3: Cross multiply
638,082.18x = 880,592.58 × 351,602.19 - Step 4: Simplify right side
638,082.18x = 309,618,279,625.75 - Step 5: Solve for x
x = 309,618,279,625.75/638,082.18 - Step 6: Final answer
x = 485,232.61
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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.