Finding the Fourth Proportional to 1,809,072.75, 2,497,688.72 and 1,121,479.41
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Solution
The fourth proportional to 1,809,072.75, 2,497,688.72 and 1,121,479.41 is: 1,548,365.85
Step by Step Solution
- Step 1: Write the proportion equation
1,809,072.75 : 2,497,688.72 = 1,121,479.41 : x - Step 2: Convert to fraction form
1,809,072.75/2,497,688.72 = 1,121,479.41/x - Step 3: Cross multiply
1,809,072.75x = 2,497,688.72 × 1,121,479.41 - Step 4: Simplify right side
1,809,072.75x = 2,801,106,472,069.26 - Step 5: Solve for x
x = 2,801,106,472,069.26/1,809,072.75 - Step 6: Final answer
x = 1,548,365.85
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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.