Finding the Fourth Proportional to 1,080,582.76, 1,491,261.62 and 621,767.08
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Solution
The fourth proportional to 1,080,582.76, 1,491,261.62 and 621,767.08 is: 858,071.60
Step by Step Solution
- Step 1: Write the proportion equation
1,080,582.76 : 1,491,261.62 = 621,767.08 : x - Step 2: Convert to fraction form
1,080,582.76/1,491,261.62 = 621,767.08/x - Step 3: Cross multiply
1,080,582.76x = 1,491,261.62 × 621,767.08 - Step 4: Simplify right side
1,080,582.76x = 927,217,382,983.47 - Step 5: Solve for x
x = 927,217,382,983.47/1,080,582.76 - Step 6: Final answer
x = 858,071.60
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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.