Finding the Fourth Proportional to 690,052.51, 1,034,728.84 and 315,754.75
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Solution
The fourth proportional to 690,052.51, 1,034,728.84 and 315,754.75 is: 473,472.01
Step by Step Solution
- Step 1: Write the proportion equation
690,052.51 : 1,034,728.84 = 315,754.75 : x - Step 2: Convert to fraction form
690,052.51/1,034,728.84 = 315,754.75/x - Step 3: Cross multiply
690,052.51x = 1,034,728.84 × 315,754.75 - Step 4: Simplify right side
690,052.51x = 326,720,546,191.99 - Step 5: Solve for x
x = 326,720,546,191.99/690,052.51 - Step 6: Final answer
x = 473,472.01
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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.