Finding the Fourth Proportional to 856,800.99, 1,285,381.91 and 324,310.23
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Solution
The fourth proportional to 856,800.99, 1,285,381.91 and 324,310.23 is: 486,533.64
Step by Step Solution
- Step 1: Write the proportion equation
856,800.99 : 1,285,381.91 = 324,310.23 : x - Step 2: Convert to fraction form
856,800.99/1,285,381.91 = 324,310.23/x - Step 3: Cross multiply
856,800.99x = 1,285,381.91 × 324,310.23 - Step 4: Simplify right side
856,800.99x = 416,862,503,680.72 - Step 5: Solve for x
x = 416,862,503,680.72/856,800.99 - Step 6: Final answer
x = 486,533.64
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1.5x scale
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.