Finding the Fourth Proportional to 323,903.70, 485,855.55 and 284,537.70
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Solution
The fourth proportional to 323,903.70, 485,855.55 and 284,537.70 is: 426,806.55
Step by Step Solution
- Step 1: Write the proportion equation
323,903.70 : 485,855.55 = 284,537.70 : x - Step 2: Convert to fraction form
323,903.70/485,855.55 = 284,537.70/x - Step 3: Cross multiply
323,903.70x = 485,855.55 × 284,537.70 - Step 4: Simplify right side
323,903.70x = 138,244,220,729.24 - Step 5: Solve for x
x = 138,244,220,729.24/323,903.70 - Step 6: Final answer
x = 426,806.55
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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.