Finding the Fourth Proportional to 1,918,190.58, 2,646,707.84 and 1,102,236.62
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Solution
The fourth proportional to 1,918,190.58, 2,646,707.84 and 1,102,236.62 is: 1,520,859.47
Step by Step Solution
- Step 1: Write the proportion equation
1,918,190.58 : 2,646,707.84 = 1,102,236.62 : x - Step 2: Convert to fraction form
1,918,190.58/2,646,707.84 = 1,102,236.62/x - Step 3: Cross multiply
1,918,190.58x = 2,646,707.84 × 1,102,236.62 - Step 4: Simplify right side
1,918,190.58x = 2,917,298,303,689.10 - Step 5: Solve for x
x = 2,917,298,303,689.10/1,918,190.58 - Step 6: Final answer
x = 1,520,859.47
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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.