Finding the Fourth Proportional to 428,722.51, 591,660.69 and 237,731.80
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Solution
The fourth proportional to 428,722.51, 591,660.69 and 237,731.80 is: 328,082.99
Step by Step Solution
- Step 1: Write the proportion equation
428,722.51 : 591,660.69 = 237,731.80 : x - Step 2: Convert to fraction form
428,722.51/591,660.69 = 237,731.80/x - Step 3: Cross multiply
428,722.51x = 591,660.69 × 237,731.80 - Step 4: Simplify right side
428,722.51x = 140,656,560,822.94 - Step 5: Solve for x
x = 140,656,560,822.94/428,722.51 - Step 6: Final answer
x = 328,082.99
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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.