Finding the Fourth Proportional to 542,716.36, 748,937.42 and 300,959.92
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Solution
The fourth proportional to 542,716.36, 748,937.42 and 300,959.92 is: 415,318.50
Step by Step Solution
- Step 1: Write the proportion equation
542,716.36 : 748,937.42 = 300,959.92 : x - Step 2: Convert to fraction form
542,716.36/748,937.42 = 300,959.92/x - Step 3: Cross multiply
542,716.36x = 748,937.42 × 300,959.92 - Step 4: Simplify right side
542,716.36x = 225,400,146,008.21 - Step 5: Solve for x
x = 225,400,146,008.21/542,716.36 - Step 6: Final answer
x = 415,318.50
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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.