Finding the Fourth Proportional to 426,814.92, 639,608.40 and 313,606.08
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Solution
The fourth proportional to 426,814.92, 639,608.40 and 313,606.08 is: 469,957.99
Step by Step Solution
- Step 1: Write the proportion equation
426,814.92 : 639,608.40 = 313,606.08 : x - Step 2: Convert to fraction form
426,814.92/639,608.40 = 313,606.08/x - Step 3: Cross multiply
426,814.92x = 639,608.40 × 313,606.08 - Step 4: Simplify right side
426,814.92x = 200,585,083,059.07 - Step 5: Solve for x
x = 200,585,083,059.07/426,814.92 - Step 6: Final answer
x = 469,957.99
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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.