Finding the Fourth Proportional to 643,789.57, 965,704.62 and 306,866.83
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Solution
The fourth proportional to 643,789.57, 965,704.62 and 306,866.83 is: 460,309.90
Step by Step Solution
- Step 1: Write the proportion equation
643,789.57 : 965,704.62 = 306,866.83 : x - Step 2: Convert to fraction form
643,789.57/965,704.62 = 306,866.83/x - Step 3: Cross multiply
643,789.57x = 965,704.62 × 306,866.83 - Step 4: Simplify right side
643,789.57x = 296,342,715,455.76 - Step 5: Solve for x
x = 296,342,715,455.76/643,789.57 - Step 6: Final answer
x = 460,309.90
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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.