Finding the Fourth Proportional to 638,149.01, 880,664.10 and 351,687.55
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Solution
The fourth proportional to 638,149.01, 880,664.10 and 351,687.55 is: 485,338.99
Step by Step Solution
- Step 1: Write the proportion equation
638,149.01 : 880,664.10 = 351,687.55 : x - Step 2: Convert to fraction form
638,149.01/880,664.10 = 351,687.55/x - Step 3: Cross multiply
638,149.01x = 880,664.10 × 351,687.55 - Step 4: Simplify right side
638,149.01x = 309,718,595,355.84 - Step 5: Solve for x
x = 309,718,595,355.84/638,149.01 - Step 6: Final answer
x = 485,338.99
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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.