Finding the Fourth Proportional to 486,245.46, 670,394.97 and 398,708.04
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Solution
The fourth proportional to 486,245.46, 670,394.97 and 398,708.04 is: 549,705.63
Step by Step Solution
- Step 1: Write the proportion equation
486,245.46 : 670,394.97 = 398,708.04 : x - Step 2: Convert to fraction form
486,245.46/670,394.97 = 398,708.04/x - Step 3: Cross multiply
486,245.46x = 670,394.97 × 398,708.04 - Step 4: Simplify right side
486,245.46x = 267,291,864,514.56 - Step 5: Solve for x
x = 267,291,864,514.56/486,245.46 - Step 6: Final answer
x = 549,705.63
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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.