Finding the Fourth Proportional to 656,149.42, 905,486.16 and 354,343.42
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Solution
The fourth proportional to 656,149.42, 905,486.16 and 354,343.42 is: 488,993.90
Step by Step Solution
- Step 1: Write the proportion equation
656,149.42 : 905,486.16 = 354,343.42 : x - Step 2: Convert to fraction form
656,149.42/905,486.16 = 354,343.42/x - Step 3: Cross multiply
656,149.42x = 905,486.16 × 354,343.42 - Step 4: Simplify right side
656,149.42x = 320,853,062,697.07 - Step 5: Solve for x
x = 320,853,062,697.07/656,149.42 - Step 6: Final answer
x = 488,993.90
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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.