Finding the Fourth Proportional to 499,432.99, 689,207.07 and 273,078.49
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Solution
The fourth proportional to 499,432.99, 689,207.07 and 273,078.49 is: 376,842.60
Step by Step Solution
- Step 1: Write the proportion equation
499,432.99 : 689,207.07 = 273,078.49 : x - Step 2: Convert to fraction form
499,432.99/689,207.07 = 273,078.49/x - Step 3: Cross multiply
499,432.99x = 689,207.07 × 273,078.49 - Step 4: Simplify right side
499,432.99x = 188,207,625,972.92 - Step 5: Solve for x
x = 188,207,625,972.92/499,432.99 - Step 6: Final answer
x = 376,842.60
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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.