Finding the Fourth Proportional to 1,986,132.06, 2,740,915.53 and 1,126,821.42
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Solution
The fourth proportional to 1,986,132.06, 2,740,915.53 and 1,126,821.42 is: 1,555,043.79
Step by Step Solution
- Step 1: Write the proportion equation
1,986,132.06 : 2,740,915.53 = 1,126,821.42 : x - Step 2: Convert to fraction form
1,986,132.06/2,740,915.53 = 1,126,821.42/x - Step 3: Cross multiply
1,986,132.06x = 2,740,915.53 × 1,126,821.42 - Step 4: Simplify right side
1,986,132.06x = 3,088,522,329,614.65 - Step 5: Solve for x
x = 3,088,522,329,614.65/1,986,132.06 - Step 6: Final answer
x = 1,555,043.79
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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.