Finding the Fourth Proportional to 3,118,969.20, 4,678,453.80 and 1,701,793.20
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Solution
The fourth proportional to 3,118,969.20, 4,678,453.80 and 1,701,793.20 is: 2,552,689.80
Step by Step Solution
- Step 1: Write the proportion equation
3,118,969.20 : 4,678,453.80 = 1,701,793.20 : x - Step 2: Convert to fraction form
3,118,969.20/4,678,453.80 = 1,701,793.20/x - Step 3: Cross multiply
3,118,969.20x = 4,678,453.80 × 1,701,793.20 - Step 4: Simplify right side
3,118,969.20x = 7,961,760,863,354.16 - Step 5: Solve for x
x = 7,961,760,863,354.16/3,118,969.20 - Step 6: Final answer
x = 2,552,689.80
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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.