Finding the Fourth Proportional to 2,977,937.20, 4,466,905.80 and 2,647,262.80
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Solution
The fourth proportional to 2,977,937.20, 4,466,905.80 and 2,647,262.80 is: 3,970,894.20
Step by Step Solution
- Step 1: Write the proportion equation
2,977,937.20 : 4,466,905.80 = 2,647,262.80 : x - Step 2: Convert to fraction form
2,977,937.20/4,466,905.80 = 2,647,262.80/x - Step 3: Cross multiply
2,977,937.20x = 4,466,905.80 × 2,647,262.80 - Step 4: Simplify right side
2,977,937.20x = 11,825,073,555,444.24 - Step 5: Solve for x
x = 11,825,073,555,444.24/2,977,937.20 - Step 6: Final answer
x = 3,970,894.20
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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.