Finding the Fourth Proportional to 457,621.44, 686,422.24 and 125,197.44
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Solution
The fourth proportional to 457,621.44, 686,422.24 and 125,197.44 is: 187,793.45
Step by Step Solution
- Step 1: Write the proportion equation
457,621.44 : 686,422.24 = 125,197.44 : x - Step 2: Convert to fraction form
457,621.44/686,422.24 = 125,197.44/x - Step 3: Cross multiply
457,621.44x = 686,422.24 × 125,197.44 - Step 4: Simplify right side
457,621.44x = 85,938,307,207.07 - Step 5: Solve for x
x = 85,938,307,207.07/457,621.44 - Step 6: Final answer
x = 187,793.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.