Finding the Fourth Proportional to 638,313.18, 880,861.67 and 351,859.92
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Solution
The fourth proportional to 638,313.18, 880,861.67 and 351,859.92 is: 485,560.89
Step by Step Solution
- Step 1: Write the proportion equation
638,313.18 : 880,861.67 = 351,859.92 : x - Step 2: Convert to fraction form
638,313.18/880,861.67 = 351,859.92/x - Step 3: Cross multiply
638,313.18x = 880,861.67 × 351,859.92 - Step 4: Simplify right side
638,313.18x = 309,939,912,994.21 - Step 5: Solve for x
x = 309,939,912,994.21/638,313.18 - Step 6: Final answer
x = 485,560.89
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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.