Finding the Fourth Proportional to 823,529.16, 1,235,648.79 and 318,445.74
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Solution
The fourth proportional to 823,529.16, 1,235,648.79 and 318,445.74 is: 477,805.90
Step by Step Solution
- Step 1: Write the proportion equation
823,529.16 : 1,235,648.79 = 318,445.74 : x - Step 2: Convert to fraction form
823,529.16/1,235,648.79 = 318,445.74/x - Step 3: Cross multiply
823,529.16x = 1,235,648.79 × 318,445.74 - Step 4: Simplify right side
823,529.16x = 393,487,093,311.66 - Step 5: Solve for x
x = 393,487,093,311.66/823,529.16 - Step 6: Final answer
x = 477,805.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.