Finding the Fourth Proportional to 486,143.79, 670,811.25 and 271,242.09
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Solution
The fourth proportional to 486,143.79, 670,811.25 and 271,242.09 is: 374,276.60
Step by Step Solution
- Step 1: Write the proportion equation
486,143.79 : 670,811.25 = 271,242.09 : x - Step 2: Convert to fraction form
486,143.79/670,811.25 = 271,242.09/x - Step 3: Cross multiply
486,143.79x = 670,811.25 × 271,242.09 - Step 4: Simplify right side
486,143.79x = 181,952,245,445.51 - Step 5: Solve for x
x = 181,952,245,445.51/486,143.79 - Step 6: Final answer
x = 374,276.60
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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.