Finding the Fourth Proportional to 1,217,524.21, 1,826,366.50 and 318,987.97
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Solution
The fourth proportional to 1,217,524.21, 1,826,366.50 and 318,987.97 is: 478,502.96
Step by Step Solution
- Step 1: Write the proportion equation
1,217,524.21 : 1,826,366.50 = 318,987.97 : x - Step 2: Convert to fraction form
1,217,524.21/1,826,366.50 = 318,987.97/x - Step 3: Cross multiply
1,217,524.21x = 1,826,366.50 × 318,987.97 - Step 4: Simplify right side
1,217,524.21x = 582,588,942,311.01 - Step 5: Solve for x
x = 582,588,942,311.01/1,217,524.21 - Step 6: Final answer
x = 478,502.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.