Finding the Fourth Proportional to 812,482.43, 1,121,211.99 and 449,898.53
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Solution
The fourth proportional to 812,482.43, 1,121,211.99 and 449,898.53 is: 620,852.35
Step by Step Solution
- Step 1: Write the proportion equation
812,482.43 : 1,121,211.99 = 449,898.53 : x - Step 2: Convert to fraction form
812,482.43/1,121,211.99 = 449,898.53/x - Step 3: Cross multiply
812,482.43x = 1,121,211.99 × 449,898.53 - Step 4: Simplify right side
812,482.43x = 504,431,620,513.32 - Step 5: Solve for x
x = 504,431,620,513.32/812,482.43 - Step 6: Final answer
x = 620,852.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.