Finding the Fourth Proportional to 689,170.41, 1,033,754.81 and 215,892.63
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Solution
The fourth proportional to 689,170.41, 1,033,754.81 and 215,892.63 is: 323,838.69
Step by Step Solution
- Step 1: Write the proportion equation
689,170.41 : 1,033,754.81 = 215,892.63 : x - Step 2: Convert to fraction form
689,170.41/1,033,754.81 = 215,892.63/x - Step 3: Cross multiply
689,170.41x = 1,033,754.81 × 215,892.63 - Step 4: Simplify right side
689,170.41x = 223,180,043,626.59 - Step 5: Solve for x
x = 223,180,043,626.59/689,170.41 - Step 6: Final answer
x = 323,838.69
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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.