Finding the Fourth Proportional to 664,464.10, 996,841.95 and 215,205.70
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Solution
The fourth proportional to 664,464.10, 996,841.95 and 215,205.70 is: 322,855.77
Step by Step Solution
- Step 1: Write the proportion equation
664,464.10 : 996,841.95 = 215,205.70 : x - Step 2: Convert to fraction form
664,464.10/996,841.95 = 215,205.70/x - Step 3: Cross multiply
664,464.10x = 996,841.95 × 215,205.70 - Step 4: Simplify right side
664,464.10x = 214,526,069,639.12 - Step 5: Solve for x
x = 214,526,069,639.12/664,464.10 - Step 6: Final answer
x = 322,855.77
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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.