Finding the Fourth Proportional to 1,190,335.08, 1,642,923.96 and 782,474.60
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Solution
The fourth proportional to 1,190,335.08, 1,642,923.96 and 782,474.60 is: 1,079,986.88
Step by Step Solution
- Step 1: Write the proportion equation
1,190,335.08 : 1,642,923.96 = 782,474.60 : x - Step 2: Convert to fraction form
1,190,335.08/1,642,923.96 = 782,474.60/x - Step 3: Cross multiply
1,190,335.08x = 1,642,923.96 × 782,474.60 - Step 4: Simplify right side
1,190,335.08x = 1,285,546,268,431.42 - Step 5: Solve for x
x = 1,285,546,268,431.42/1,190,335.08 - Step 6: Final answer
x = 1,079,986.88
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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.