Finding the Fourth Proportional to 431,403.42, 595,161.36 and 286,277.64
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Solution
The fourth proportional to 431,403.42, 595,161.36 and 286,277.64 is: 394,946.78
Step by Step Solution
- Step 1: Write the proportion equation
431,403.42 : 595,161.36 = 286,277.64 : x - Step 2: Convert to fraction form
431,403.42/595,161.36 = 286,277.64/x - Step 3: Cross multiply
431,403.42x = 595,161.36 × 286,277.64 - Step 4: Simplify right side
431,403.42x = 170,381,389,559.99 - Step 5: Solve for x
x = 170,381,389,559.99/431,403.42 - Step 6: Final answer
x = 394,946.78
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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.