Finding the Fourth Proportional to 2,121,243.06, 3,180,595.50 and 1,438,968.36
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Solution
The fourth proportional to 2,121,243.06, 3,180,595.50 and 1,438,968.36 is: 2,157,591.64
Step by Step Solution
- Step 1: Write the proportion equation
2,121,243.06 : 3,180,595.50 = 1,438,968.36 : x - Step 2: Convert to fraction form
2,121,243.06/3,180,595.50 = 1,438,968.36/x - Step 3: Cross multiply
2,121,243.06x = 3,180,595.50 × 1,438,968.36 - Step 4: Simplify right side
2,121,243.06x = 4,576,776,290,458.38 - Step 5: Solve for x
x = 4,576,776,290,458.38/2,121,243.06 - Step 6: Final answer
x = 2,157,591.64
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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.