Finding the Fourth Proportional to 1,391,615.92, 2,086,765.95 and 539,086.87
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Solution
The fourth proportional to 1,391,615.92, 2,086,765.95 and 539,086.87 is: 808,375.43
Step by Step Solution
- Step 1: Write the proportion equation
1,391,615.92 : 2,086,765.95 = 539,086.87 : x - Step 2: Convert to fraction form
1,391,615.92/2,086,765.95 = 539,086.87/x - Step 3: Cross multiply
1,391,615.92x = 2,086,765.95 × 539,086.87 - Step 4: Simplify right side
1,391,615.92x = 1,124,948,124,408.08 - Step 5: Solve for x
x = 1,124,948,124,408.08/1,391,615.92 - Step 6: Final answer
x = 808,375.43
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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.