Finding the Fourth Proportional to 1,189,106.71, 1,783,596.42 and 420,551.17
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Solution
The fourth proportional to 1,189,106.71, 1,783,596.42 and 420,551.17 is: 630,804.25
Step by Step Solution
- Step 1: Write the proportion equation
1,189,106.71 : 1,783,596.42 = 420,551.17 : x - Step 2: Convert to fraction form
1,189,106.71/1,783,596.42 = 420,551.17/x - Step 3: Cross multiply
1,189,106.71x = 1,783,596.42 × 420,551.17 - Step 4: Simplify right side
1,189,106.71x = 750,093,561,238.81 - Step 5: Solve for x
x = 750,093,561,238.81/1,189,106.71 - Step 6: Final answer
x = 630,804.25
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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.