Finding the Fourth Proportional to 513,827.07, 769,743.17 and 378,645.75
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Solution
The fourth proportional to 513,827.07, 769,743.17 and 378,645.75 is: 567,233.60
Step by Step Solution
- Step 1: Write the proportion equation
513,827.07 : 769,743.17 = 378,645.75 : x - Step 2: Convert to fraction form
513,827.07/769,743.17 = 378,645.75/x - Step 3: Cross multiply
513,827.07x = 769,743.17 × 378,645.75 - Step 4: Simplify right side
513,827.07x = 291,459,978,018.80 - Step 5: Solve for x
x = 291,459,978,018.80/513,827.07 - Step 6: Final answer
x = 567,233.60
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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.