Finding the Fourth Proportional to 2,143,051.11, 2,957,591.97 and 1,176,345.12
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Solution
The fourth proportional to 2,143,051.11, 2,957,591.97 and 1,176,345.12 is: 1,623,455.86
Step by Step Solution
- Step 1: Write the proportion equation
2,143,051.11 : 2,957,591.97 = 1,176,345.12 : x - Step 2: Convert to fraction form
2,143,051.11/2,957,591.97 = 1,176,345.12/x - Step 3: Cross multiply
2,143,051.11x = 2,957,591.97 × 1,176,345.12 - Step 4: Simplify right side
2,143,051.11x = 3,479,148,880,860.69 - Step 5: Solve for x
x = 3,479,148,880,860.69/2,143,051.11 - Step 6: Final answer
x = 1,623,455.86
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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.