Finding the Fourth Proportional to 2,860,716.88, 3,947,108.70 and 1,620,337.96
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Solution
The fourth proportional to 2,860,716.88, 3,947,108.70 and 1,620,337.96 is: 2,235,680.89
Step by Step Solution
- Step 1: Write the proportion equation
2,860,716.88 : 3,947,108.70 = 1,620,337.96 : x - Step 2: Convert to fraction form
2,860,716.88/3,947,108.70 = 1,620,337.96/x - Step 3: Cross multiply
2,860,716.88x = 3,947,108.70 × 1,620,337.96 - Step 4: Simplify right side
2,860,716.88x = 6,395,650,058,856.25 - Step 5: Solve for x
x = 6,395,650,058,856.25/2,860,716.88 - Step 6: Final answer
x = 2,235,680.89
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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.