Finding the Fourth Proportional to 393,149.05, 541,422.65 and 354,053.99
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Solution
The fourth proportional to 393,149.05, 541,422.65 and 354,053.99 is: 487,583.15
Step by Step Solution
- Step 1: Write the proportion equation
393,149.05 : 541,422.65 = 354,053.99 : x - Step 2: Convert to fraction form
393,149.05/541,422.65 = 354,053.99/x - Step 3: Cross multiply
393,149.05x = 541,422.65 × 354,053.99 - Step 4: Simplify right side
393,149.05x = 191,692,851,747.57 - Step 5: Solve for x
x = 191,692,851,747.57/393,149.05 - Step 6: Final answer
x = 487,583.15
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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.