Finding the Fourth Proportional to 647,761.84, 893,912.70 and 361,274.56
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Solution
The fourth proportional to 647,761.84, 893,912.70 and 361,274.56 is: 498,559.65
Step by Step Solution
- Step 1: Write the proportion equation
647,761.84 : 893,912.70 = 361,274.56 : x - Step 2: Convert to fraction form
647,761.84/893,912.70 = 361,274.56/x - Step 3: Cross multiply
647,761.84x = 893,912.70 × 361,274.56 - Step 4: Simplify right side
647,761.84x = 322,947,917,370.91 - Step 5: Solve for x
x = 322,947,917,370.91/647,761.84 - Step 6: Final answer
x = 498,559.65
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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.