Finding the Fourth Proportional to 486,793.68, 671,811.60 and 280,125.36
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Solution
The fourth proportional to 486,793.68, 671,811.60 and 280,125.36 is: 386,593.90
Step by Step Solution
- Step 1: Write the proportion equation
486,793.68 : 671,811.60 = 280,125.36 : x - Step 2: Convert to fraction form
486,793.68/671,811.60 = 280,125.36/x - Step 3: Cross multiply
486,793.68x = 671,811.60 × 280,125.36 - Step 4: Simplify right side
486,793.68x = 188,191,466,302.18 - Step 5: Solve for x
x = 188,191,466,302.18/486,793.68 - Step 6: Final answer
x = 386,593.90
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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.