Finding the Fourth Proportional to 413,535.10, 620,389.05 and 133,080.70
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Solution
The fourth proportional to 413,535.10, 620,389.05 and 133,080.70 is: 199,648.85
Step by Step Solution
- Step 1: Write the proportion equation
413,535.10 : 620,389.05 = 133,080.70 : x - Step 2: Convert to fraction form
413,535.10/620,389.05 = 133,080.70/x - Step 3: Cross multiply
413,535.10x = 620,389.05 × 133,080.70 - Step 4: Simplify right side
413,535.10x = 82,561,809,046.34 - Step 5: Solve for x
x = 82,561,809,046.34/413,535.10 - Step 6: Final answer
x = 199,648.85
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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.