Finding the Fourth Proportional to 381,855.28, 569,991.36 and 354,101.44
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Solution
The fourth proportional to 381,855.28, 569,991.36 and 354,101.44 is: 528,563.49
Step by Step Solution
- Step 1: Write the proportion equation
381,855.28 : 569,991.36 = 354,101.44 : x - Step 2: Convert to fraction form
381,855.28/569,991.36 = 354,101.44/x - Step 3: Cross multiply
381,855.28x = 569,991.36 × 354,101.44 - Step 4: Simplify right side
381,855.28x = 201,834,761,363.56 - Step 5: Solve for x
x = 201,834,761,363.56/381,855.28 - Step 6: Final answer
x = 528,563.49
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.