Finding the Fourth Proportional to 2,187,378.64, 3,018,578.76 and 1,220,450
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Solution
The fourth proportional to 2,187,378.64, 3,018,578.76 and 1,220,450 is: 1,684,218.90
Step by Step Solution
- Step 1: Write the proportion equation
2,187,378.64 : 3,018,578.76 = 1,220,450 : x - Step 2: Convert to fraction form
2,187,378.64/3,018,578.76 = 1,220,450/x - Step 3: Cross multiply
2,187,378.64x = 3,018,578.76 × 1,220,450 - Step 4: Simplify right side
2,187,378.64x = 3,684,024,447,642.00 - Step 5: Solve for x
x = 3,684,024,447,642.00/2,187,378.64 - Step 6: Final answer
x = 1,684,218.90
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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.