Finding the Fourth Proportional to 656,475.40, 984,713.10 and 432,137.80
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Solution
The fourth proportional to 656,475.40, 984,713.10 and 432,137.80 is: 648,206.70
Step by Step Solution
- Step 1: Write the proportion equation
656,475.40 : 984,713.10 = 432,137.80 : x - Step 2: Convert to fraction form
656,475.40/984,713.10 = 432,137.80/x - Step 3: Cross multiply
656,475.40x = 984,713.10 × 432,137.80 - Step 4: Simplify right side
656,475.40x = 425,531,752,665.18 - Step 5: Solve for x
x = 425,531,752,665.18/656,475.40 - Step 6: Final answer
x = 648,206.70
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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.