Finding the Fourth Proportional to 322,439.43, 483,658.54 and 85,782.10
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Solution
The fourth proportional to 322,439.43, 483,658.54 and 85,782.10 is: 128,672.99
Step by Step Solution
- Step 1: Write the proportion equation
322,439.43 : 483,658.54 = 85,782.10 : x - Step 2: Convert to fraction form
322,439.43/483,658.54 = 85,782.10/x - Step 3: Cross multiply
322,439.43x = 483,658.54 × 85,782.10 - Step 4: Simplify right side
322,439.43x = 41,489,245,244.13 - Step 5: Solve for x
x = 41,489,245,244.13/322,439.43 - Step 6: Final answer
x = 128,672.99
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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.