Finding the Fourth Proportional to 1,018,549.14, 1,405,106.37 and 678,582.42
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Solution
The fourth proportional to 1,018,549.14, 1,405,106.37 and 678,582.42 is: 936,116.33
Step by Step Solution
- Step 1: Write the proportion equation
1,018,549.14 : 1,405,106.37 = 678,582.42 : x - Step 2: Convert to fraction form
1,018,549.14/1,405,106.37 = 678,582.42/x - Step 3: Cross multiply
1,018,549.14x = 1,405,106.37 × 678,582.42 - Step 4: Simplify right side
1,018,549.14x = 953,480,480,912.02 - Step 5: Solve for x
x = 953,480,480,912.02/1,018,549.14 - Step 6: Final answer
x = 936,116.33
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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.