Finding the Fourth Proportional to 425,195.05, 637,793.37 and 399,213.49
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Solution
The fourth proportional to 425,195.05, 637,793.37 and 399,213.49 is: 598,820.98
Step by Step Solution
- Step 1: Write the proportion equation
425,195.05 : 637,793.37 = 399,213.49 : x - Step 2: Convert to fraction form
425,195.05/637,793.37 = 399,213.49/x - Step 3: Cross multiply
425,195.05x = 637,793.37 × 399,213.49 - Step 4: Simplify right side
425,195.05x = 254,615,717,136.56 - Step 5: Solve for x
x = 254,615,717,136.56/425,195.05 - Step 6: Final answer
x = 598,820.98
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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.