Finding the Fourth Proportional to 971,990.70, 1,457,986.05 and 340,676.70
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Solution
The fourth proportional to 971,990.70, 1,457,986.05 and 340,676.70 is: 511,015.05
Step by Step Solution
- Step 1: Write the proportion equation
971,990.70 : 1,457,986.05 = 340,676.70 : x - Step 2: Convert to fraction form
971,990.70/1,457,986.05 = 340,676.70/x - Step 3: Cross multiply
971,990.70x = 1,457,986.05 × 340,676.70 - Step 4: Simplify right side
971,990.70x = 496,701,876,160.04 - Step 5: Solve for x
x = 496,701,876,160.04/971,990.70 - Step 6: Final answer
x = 511,015.05
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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.