Finding the Fourth Proportional to 418,435.20, 626,731.20 and 363,139.20
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Solution
The fourth proportional to 418,435.20, 626,731.20 and 363,139.20 is: 543,908.99
Step by Step Solution
- Step 1: Write the proportion equation
418,435.20 : 626,731.20 = 363,139.20 : x - Step 2: Convert to fraction form
418,435.20/626,731.20 = 363,139.20/x - Step 3: Cross multiply
418,435.20x = 626,731.20 × 363,139.20 - Step 4: Simplify right side
418,435.20x = 227,590,666,583.04 - Step 5: Solve for x
x = 227,590,666,583.04/418,435.20 - Step 6: Final answer
x = 543,908.99
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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.