Finding the Fourth Proportional to 658,272.42, 987,408.63 and 231,707.79
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Solution
The fourth proportional to 658,272.42, 987,408.63 and 231,707.79 is: 347,561.69
Step by Step Solution
- Step 1: Write the proportion equation
658,272.42 : 987,408.63 = 231,707.79 : x - Step 2: Convert to fraction form
658,272.42/987,408.63 = 231,707.79/x - Step 3: Cross multiply
658,272.42x = 987,408.63 × 231,707.79 - Step 4: Simplify right side
658,272.42x = 228,790,271,484.23 - Step 5: Solve for x
x = 228,790,271,484.23/658,272.42 - Step 6: Final answer
x = 347,561.69
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.