Finding the Fourth Proportional to 392,962.68, 589,559.02 and 126,717.84
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Solution
The fourth proportional to 392,962.68, 589,559.02 and 126,717.84 is: 190,113.84
Step by Step Solution
- Step 1: Write the proportion equation
392,962.68 : 589,559.02 = 126,717.84 : x - Step 2: Convert to fraction form
392,962.68/589,559.02 = 126,717.84/x - Step 3: Cross multiply
392,962.68x = 589,559.02 × 126,717.84 - Step 4: Simplify right side
392,962.68x = 74,707,645,566.92 - Step 5: Solve for x
x = 74,707,645,566.92/392,962.68 - Step 6: Final answer
x = 190,113.84
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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.