Finding the Fourth Proportional to 457,975.80, 686,963.70 and 248,023.80
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Solution
The fourth proportional to 457,975.80, 686,963.70 and 248,023.80 is: 372,035.70
Step by Step Solution
- Step 1: Write the proportion equation
457,975.80 : 686,963.70 = 248,023.80 : x - Step 2: Convert to fraction form
457,975.80/686,963.70 = 248,023.80/x - Step 3: Cross multiply
457,975.80x = 686,963.70 × 248,023.80 - Step 4: Simplify right side
457,975.80x = 170,383,347,336.06 - Step 5: Solve for x
x = 170,383,347,336.06/457,975.80 - Step 6: Final answer
x = 372,035.70
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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.