Finding the Fourth Proportional to 542,531.19, 748,735.35 and 300,860.85
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Solution
The fourth proportional to 542,531.19, 748,735.35 and 300,860.85 is: 415,211.43
Step by Step Solution
- Step 1: Write the proportion equation
542,531.19 : 748,735.35 = 300,860.85 : x - Step 2: Convert to fraction form
542,531.19/748,735.35 = 300,860.85/x - Step 3: Cross multiply
542,531.19x = 748,735.35 × 300,860.85 - Step 4: Simplify right side
542,531.19x = 225,265,153,826.05 - Step 5: Solve for x
x = 225,265,153,826.05/542,531.19 - Step 6: Final answer
x = 415,211.43
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1.5x scale
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.