Finding the Fourth Proportional to 2,147,376.11, 2,963,435.58 and 1,180,530.75
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Solution
The fourth proportional to 2,147,376.11, 2,963,435.58 and 1,180,530.75 is: 1,629,163.52
Step by Step Solution
- Step 1: Write the proportion equation
2,147,376.11 : 2,963,435.58 = 1,180,530.75 : x - Step 2: Convert to fraction form
2,147,376.11/2,963,435.58 = 1,180,530.75/x - Step 3: Cross multiply
2,147,376.11x = 2,963,435.58 × 1,180,530.75 - Step 4: Simplify right side
2,147,376.11x = 3,498,426,821,931.43 - Step 5: Solve for x
x = 3,498,426,821,931.43/2,147,376.11 - Step 6: Final answer
x = 1,629,163.52
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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.