Finding the Fourth Proportional to 465,724.62, 642,324.06 and 312,716.70
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Solution
The fourth proportional to 465,724.62, 642,324.06 and 312,716.70 is: 431,296.63
Step by Step Solution
- Step 1: Write the proportion equation
465,724.62 : 642,324.06 = 312,716.70 : x - Step 2: Convert to fraction form
465,724.62/642,324.06 = 312,716.70/x - Step 3: Cross multiply
465,724.62x = 642,324.06 × 312,716.70 - Step 4: Simplify right side
465,724.62x = 200,865,460,373.80 - Step 5: Solve for x
x = 200,865,460,373.80/465,724.62 - Step 6: Final answer
x = 431,296.63
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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.