Finding the Fourth Proportional to 499,433.49, 689,207.76 and 273,078.99
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Solution
The fourth proportional to 499,433.49, 689,207.76 and 273,078.99 is: 376,843.29
Step by Step Solution
- Step 1: Write the proportion equation
499,433.49 : 689,207.76 = 273,078.99 : x - Step 2: Convert to fraction form
499,433.49/689,207.76 = 273,078.99/x - Step 3: Cross multiply
499,433.49x = 689,207.76 × 273,078.99 - Step 4: Simplify right side
499,433.49x = 188,208,159,000.96 - Step 5: Solve for x
x = 188,208,159,000.96/499,433.49 - Step 6: Final answer
x = 376,843.29
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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.