Finding the Fourth Proportional to 620,348.24, 856,160.52 and 378,579.44
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Solution
The fourth proportional to 620,348.24, 856,160.52 and 378,579.44 is: 522,488.42
Step by Step Solution
- Step 1: Write the proportion equation
620,348.24 : 856,160.52 = 378,579.44 : x - Step 2: Convert to fraction form
620,348.24/856,160.52 = 378,579.44/x - Step 3: Cross multiply
620,348.24x = 856,160.52 × 378,579.44 - Step 4: Simplify right side
620,348.24x = 324,124,770,211.71 - Step 5: Solve for x
x = 324,124,770,211.71/620,348.24 - Step 6: Final answer
x = 522,488.42
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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.