Finding the Fourth Proportional to 787,685.99, 1,086,568.97 and 516,191.81
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Solution
The fourth proportional to 787,685.99, 1,086,568.97 and 516,191.81 is: 712,057.86
Step by Step Solution
- Step 1: Write the proportion equation
787,685.99 : 1,086,568.97 = 516,191.81 : x - Step 2: Convert to fraction form
787,685.99/1,086,568.97 = 516,191.81/x - Step 3: Cross multiply
787,685.99x = 1,086,568.97 × 516,191.81 - Step 4: Simplify right side
787,685.99x = 560,877,995,300.33 - Step 5: Solve for x
x = 560,877,995,300.33/787,685.99 - Step 6: Final answer
x = 712,057.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.