Finding the Fourth Proportional to 2,491,297.09, 3,437,989.95 and 1,345,377.40
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Solution
The fourth proportional to 2,491,297.09, 3,437,989.95 and 1,345,377.40 is: 1,856,620.79
Step by Step Solution
- Step 1: Write the proportion equation
2,491,297.09 : 3,437,989.95 = 1,345,377.40 : x - Step 2: Convert to fraction form
2,491,297.09/3,437,989.95 = 1,345,377.40/x - Step 3: Cross multiply
2,491,297.09x = 3,437,989.95 × 1,345,377.40 - Step 4: Simplify right side
2,491,297.09x = 4,625,393,980,157.13 - Step 5: Solve for x
x = 4,625,393,980,157.13/2,491,297.09 - Step 6: Final answer
x = 1,856,620.79
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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.