Finding the Fourth Proportional to 815,957.62, 1,125,997.41 and 453,372.46
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Solution
The fourth proportional to 815,957.62, 1,125,997.41 and 453,372.46 is: 625,640.60
Step by Step Solution
- Step 1: Write the proportion equation
815,957.62 : 1,125,997.41 = 453,372.46 : x - Step 2: Convert to fraction form
815,957.62/1,125,997.41 = 453,372.46/x - Step 3: Cross multiply
815,957.62x = 1,125,997.41 × 453,372.46 - Step 4: Simplify right side
815,957.62x = 510,496,215,725.33 - Step 5: Solve for x
x = 510,496,215,725.33/815,957.62 - Step 6: Final answer
x = 625,640.60
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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.