Finding the Fourth Proportional to 723,874.44, 1,085,811.68 and 392,098.44
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Solution
The fourth proportional to 723,874.44, 1,085,811.68 and 392,098.44 is: 588,147.67
Step by Step Solution
- Step 1: Write the proportion equation
723,874.44 : 1,085,811.68 = 392,098.44 : x - Step 2: Convert to fraction form
723,874.44/1,085,811.68 = 392,098.44/x - Step 3: Cross multiply
723,874.44x = 1,085,811.68 × 392,098.44 - Step 4: Simplify right side
723,874.44x = 425,745,065,861.78 - Step 5: Solve for x
x = 425,745,065,861.78/723,874.44 - Step 6: Final answer
x = 588,147.67
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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.