Finding the Fourth Proportional to 392,769.07, 589,154.07 and 126,569.23
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Solution
The fourth proportional to 392,769.07, 589,154.07 and 126,569.23 is: 189,853.99
Step by Step Solution
- Step 1: Write the proportion equation
392,769.07 : 589,154.07 = 126,569.23 : x - Step 2: Convert to fraction form
392,769.07/589,154.07 = 126,569.23/x - Step 3: Cross multiply
392,769.07x = 589,154.07 × 126,569.23 - Step 4: Simplify right side
392,769.07x = 74,568,776,991.27 - Step 5: Solve for x
x = 74,568,776,991.27/392,769.07 - Step 6: Final answer
x = 189,853.99
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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.