Finding the Fourth Proportional to 859,687.80, 1,289,531.70 and 754,711.80
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Solution
The fourth proportional to 859,687.80, 1,289,531.70 and 754,711.80 is: 1,132,067.70
Step by Step Solution
- Step 1: Write the proportion equation
859,687.80 : 1,289,531.70 = 754,711.80 : x - Step 2: Convert to fraction form
859,687.80/1,289,531.70 = 754,711.80/x - Step 3: Cross multiply
859,687.80x = 1,289,531.70 × 754,711.80 - Step 4: Simplify right side
859,687.80x = 973,224,790,464.06 - Step 5: Solve for x
x = 973,224,790,464.06/859,687.80 - Step 6: Final answer
x = 1,132,067.70
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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.