Finding the Fourth Proportional to 1,722,491.76, 2,374,574.88 and 1,211,608.56
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Solution
The fourth proportional to 1,722,491.76, 2,374,574.88 and 1,211,608.56 is: 1,670,286.80
Step by Step Solution
- Step 1: Write the proportion equation
1,722,491.76 : 2,374,574.88 = 1,211,608.56 : x - Step 2: Convert to fraction form
1,722,491.76/2,374,574.88 = 1,211,608.56/x - Step 3: Cross multiply
1,722,491.76x = 2,374,574.88 × 1,211,608.56 - Step 4: Simplify right side
1,722,491.76x = 2,877,055,250,968.97 - Step 5: Solve for x
x = 2,877,055,250,968.97/1,722,491.76 - Step 6: Final answer
x = 1,670,286.80
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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.