Finding the Fourth Proportional to 542,717.30, 748,995.84 and 301,077.70
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Solution
The fourth proportional to 542,717.30, 748,995.84 and 301,077.70 is: 415,512.72
Step by Step Solution
- Step 1: Write the proportion equation
542,717.30 : 748,995.84 = 301,077.70 : x - Step 2: Convert to fraction form
542,717.30/748,995.84 = 301,077.70/x - Step 3: Cross multiply
542,717.30x = 748,995.84 × 301,077.70 - Step 4: Simplify right side
542,717.30x = 225,505,941,071.79 - Step 5: Solve for x
x = 225,505,941,071.79/542,717.30 - Step 6: Final answer
x = 415,512.72
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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.