Finding the Fourth Proportional to 463,761.25, 639,989.10 and 257,042.84
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Solution
The fourth proportional to 463,761.25, 639,989.10 and 257,042.84 is: 354,718.32
Step by Step Solution
- Step 1: Write the proportion equation
463,761.25 : 639,989.10 = 257,042.84 : x - Step 2: Convert to fraction form
463,761.25/639,989.10 = 257,042.84/x - Step 3: Cross multiply
463,761.25x = 639,989.10 × 257,042.84 - Step 4: Simplify right side
463,761.25x = 164,504,612,633.10 - Step 5: Solve for x
x = 164,504,612,633.10/463,761.25 - Step 6: Final answer
x = 354,718.32
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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.