Finding the Fourth Proportional to 1,455,680.91, 2,008,812.87 and 811,087.23
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Solution
The fourth proportional to 1,455,680.91, 2,008,812.87 and 811,087.23 is: 1,119,285.45
Step by Step Solution
- Step 1: Write the proportion equation
1,455,680.91 : 2,008,812.87 = 811,087.23 : x - Step 2: Convert to fraction form
1,455,680.91/2,008,812.87 = 811,087.23/x - Step 3: Cross multiply
1,455,680.91x = 2,008,812.87 × 811,087.23 - Step 4: Simplify right side
1,455,680.91x = 1,629,322,466,316.65 - Step 5: Solve for x
x = 1,629,322,466,316.65/1,455,680.91 - Step 6: Final answer
x = 1,119,285.45
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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.