Finding the Fourth Proportional to 499,423.70, 689,207.37 and 273,069.20
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Solution
The fourth proportional to 499,423.70, 689,207.37 and 273,069.20 is: 376,836.95
Step by Step Solution
- Step 1: Write the proportion equation
499,423.70 : 689,207.37 = 273,069.20 : x - Step 2: Convert to fraction form
499,423.70/689,207.37 = 273,069.20/x - Step 3: Cross multiply
499,423.70x = 689,207.37 × 273,069.20 - Step 4: Simplify right side
499,423.70x = 188,201,305,859.01 - Step 5: Solve for x
x = 188,201,305,859.01/499,423.70 - Step 6: Final answer
x = 376,836.95
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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.