Finding the Fourth Proportional to 1,135,189.69, 1,566,574.02 and 618,939.38
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Solution
The fourth proportional to 1,135,189.69, 1,566,574.02 and 618,939.38 is: 854,143.02
Step by Step Solution
- Step 1: Write the proportion equation
1,135,189.69 : 1,566,574.02 = 618,939.38 : x - Step 2: Convert to fraction form
1,135,189.69/1,566,574.02 = 618,939.38/x - Step 3: Cross multiply
1,135,189.69x = 1,566,574.02 × 618,939.38 - Step 4: Simplify right side
1,135,189.69x = 969,614,347,767.36 - Step 5: Solve for x
x = 969,614,347,767.36/1,135,189.69 - Step 6: Final answer
x = 854,143.02
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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.