Finding the Fourth Proportional to 616,636.13, 850,961.28 and 344,715.49
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Solution
The fourth proportional to 616,636.13, 850,961.28 and 344,715.49 is: 475,709.28
Step by Step Solution
- Step 1: Write the proportion equation
616,636.13 : 850,961.28 = 344,715.49 : x - Step 2: Convert to fraction form
616,636.13/850,961.28 = 344,715.49/x - Step 3: Cross multiply
616,636.13x = 850,961.28 × 344,715.49 - Step 4: Simplify right side
616,636.13x = 293,339,534,311.68 - Step 5: Solve for x
x = 293,339,534,311.68/616,636.13 - Step 6: Final answer
x = 475,709.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.