Finding the Fourth Proportional to 1,543,380.21, 2,129,331.65 and 970,463.97
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Solution
The fourth proportional to 1,543,380.21, 2,129,331.65 and 970,463.97 is: 1,338,905.10
Step by Step Solution
- Step 1: Write the proportion equation
1,543,380.21 : 2,129,331.65 = 970,463.97 : x - Step 2: Convert to fraction form
1,543,380.21/2,129,331.65 = 970,463.97/x - Step 3: Cross multiply
1,543,380.21x = 2,129,331.65 × 970,463.97 - Step 4: Simplify right side
1,543,380.21x = 2,066,439,641,653.33 - Step 5: Solve for x
x = 2,066,439,641,653.33/1,543,380.21 - Step 6: Final answer
x = 1,338,905.10
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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.