Finding the Fourth Proportional to 638,315.22, 880,864.48 and 351,861.96
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Solution
The fourth proportional to 638,315.22, 880,864.48 and 351,861.96 is: 485,563.70
Step by Step Solution
- Step 1: Write the proportion equation
638,315.22 : 880,864.48 = 351,861.96 : x - Step 2: Convert to fraction form
638,315.22/880,864.48 = 351,861.96/x - Step 3: Cross multiply
638,315.22x = 880,864.48 × 351,861.96 - Step 4: Simplify right side
638,315.22x = 309,942,702,427.18 - Step 5: Solve for x
x = 309,942,702,427.18/638,315.22 - Step 6: Final answer
x = 485,563.70
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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.