Finding the Fourth Proportional to 2,021,798.88, 2,790,009.36 and 1,116,361.44
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Solution
The fourth proportional to 2,021,798.88, 2,790,009.36 and 1,116,361.44 is: 1,540,538.43
Step by Step Solution
- Step 1: Write the proportion equation
2,021,798.88 : 2,790,009.36 = 1,116,361.44 : x - Step 2: Convert to fraction form
2,021,798.88/2,790,009.36 = 1,116,361.44/x - Step 3: Cross multiply
2,021,798.88x = 2,790,009.36 × 1,116,361.44 - Step 4: Simplify right side
2,021,798.88x = 3,114,658,866,743.08 - Step 5: Solve for x
x = 3,114,658,866,743.08/2,021,798.88 - Step 6: Final answer
x = 1,540,538.43
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1.5x scale
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.