Finding the Fourth Proportional to 542,720.36, 748,942.94 and 300,963.92
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Solution
The fourth proportional to 542,720.36, 748,942.94 and 300,963.92 is: 415,324.02
Step by Step Solution
- Step 1: Write the proportion equation
542,720.36 : 748,942.94 = 300,963.92 : x - Step 2: Convert to fraction form
542,720.36/748,942.94 = 300,963.92/x - Step 3: Cross multiply
542,720.36x = 748,942.94 × 300,963.92 - Step 4: Simplify right side
542,720.36x = 225,404,803,078.73 - Step 5: Solve for x
x = 225,404,803,078.73/542,720.36 - Step 6: Final answer
x = 415,324.02
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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.