Finding the Fourth Proportional to 642,472.29, 964,144.35 and 343,167.84
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Solution
The fourth proportional to 642,472.29, 964,144.35 and 343,167.84 is: 514,984.60
Step by Step Solution
- Step 1: Write the proportion equation
642,472.29 : 964,144.35 = 343,167.84 : x - Step 2: Convert to fraction form
642,472.29/964,144.35 = 343,167.84/x - Step 3: Cross multiply
642,472.29x = 964,144.35 × 343,167.84 - Step 4: Simplify right side
642,472.29x = 330,863,334,037.70 - Step 5: Solve for x
x = 330,863,334,037.70/642,472.29 - Step 6: Final answer
x = 514,984.60
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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.