Finding the Fourth Proportional to 625,909.26, 939,021.22 and 289,188.20
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Solution
The fourth proportional to 625,909.26, 939,021.22 and 289,188.20 is: 433,854.99
Step by Step Solution
- Step 1: Write the proportion equation
625,909.26 : 939,021.22 = 289,188.20 : x - Step 2: Convert to fraction form
625,909.26/939,021.22 = 289,188.20/x - Step 3: Cross multiply
625,909.26x = 939,021.22 × 289,188.20 - Step 4: Simplify right side
625,909.26x = 271,553,856,373.60 - Step 5: Solve for x
x = 271,553,856,373.60/625,909.26 - Step 6: Final answer
x = 433,854.99
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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.