Finding the Fourth Proportional to 657,491.20, 985,660.80 and 446,444.80
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Solution
The fourth proportional to 657,491.20, 985,660.80 and 446,444.80 is: 669,276.09
Step by Step Solution
- Step 1: Write the proportion equation
657,491.20 : 985,660.80 = 446,444.80 : x - Step 2: Convert to fraction form
657,491.20/985,660.80 = 446,444.80/x - Step 3: Cross multiply
657,491.20x = 985,660.80 × 446,444.80 - Step 4: Simplify right side
657,491.20x = 440,043,138,723.84 - Step 5: Solve for x
x = 440,043,138,723.84/657,491.20 - Step 6: Final answer
x = 669,276.09
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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.