Finding the Fourth Proportional to 1,917,274.44, 2,645,847.18 and 1,057,834.20
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Solution
The fourth proportional to 1,917,274.44, 2,645,847.18 and 1,057,834.20 is: 1,459,815.86
Step by Step Solution
- Step 1: Write the proportion equation
1,917,274.44 : 2,645,847.18 = 1,057,834.20 : x - Step 2: Convert to fraction form
1,917,274.44/2,645,847.18 = 1,057,834.20/x - Step 3: Cross multiply
1,917,274.44x = 2,645,847.18 × 1,057,834.20 - Step 4: Simplify right side
1,917,274.44x = 2,798,867,634,977.56 - Step 5: Solve for x
x = 2,798,867,634,977.56/1,917,274.44 - Step 6: Final answer
x = 1,459,815.86
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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.