Finding the Fourth Proportional to 1,543,487.94, 2,129,628.60 and 890,313.66
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Solution
The fourth proportional to 1,543,487.94, 2,129,628.60 and 890,313.66 is: 1,228,410.92
Step by Step Solution
- Step 1: Write the proportion equation
1,543,487.94 : 2,129,628.60 = 890,313.66 : x - Step 2: Convert to fraction form
1,543,487.94/2,129,628.60 = 890,313.66/x - Step 3: Cross multiply
1,543,487.94x = 2,129,628.60 × 890,313.66 - Step 4: Simplify right side
1,543,487.94x = 1,896,037,433,306.68 - Step 5: Solve for x
x = 1,896,037,433,306.68/1,543,487.94 - Step 6: Final answer
x = 1,228,410.92
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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.