Finding the Fourth Proportional to 1,623,709.16, 2,241,821.22 and 1,012,106.60
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Solution
The fourth proportional to 1,623,709.16, 2,241,821.22 and 1,012,106.60 is: 1,397,394.38
Step by Step Solution
- Step 1: Write the proportion equation
1,623,709.16 : 2,241,821.22 = 1,012,106.60 : x - Step 2: Convert to fraction form
1,623,709.16/2,241,821.22 = 1,012,106.60/x - Step 3: Cross multiply
1,623,709.16x = 2,241,821.22 × 1,012,106.60 - Step 4: Simplify right side
1,623,709.16x = 2,268,962,052,782.05 - Step 5: Solve for x
x = 2,268,962,052,782.05/1,623,709.16 - Step 6: Final answer
x = 1,397,394.38
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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.