Finding the Fourth Proportional to 1,379,390.65, 2,069,087.12 and 659,562.99
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Solution
The fourth proportional to 1,379,390.65, 2,069,087.12 and 659,562.99 is: 989,345.03
Step by Step Solution
- Step 1: Write the proportion equation
1,379,390.65 : 2,069,087.12 = 659,562.99 : x - Step 2: Convert to fraction form
1,379,390.65/2,069,087.12 = 659,562.99/x - Step 3: Cross multiply
1,379,390.65x = 2,069,087.12 × 659,562.99 - Step 4: Simplify right side
1,379,390.65x = 1,364,693,278,854.16 - Step 5: Solve for x
x = 1,364,693,278,854.16/1,379,390.65 - Step 6: Final answer
x = 989,345.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.