Finding the Fourth Proportional to 664,340.70, 996,511.05 and 487,193.70
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Solution
The fourth proportional to 664,340.70, 996,511.05 and 487,193.70 is: 730,790.55
Step by Step Solution
- Step 1: Write the proportion equation
664,340.70 : 996,511.05 = 487,193.70 : x - Step 2: Convert to fraction form
664,340.70/996,511.05 = 487,193.70/x - Step 3: Cross multiply
664,340.70x = 996,511.05 × 487,193.70 - Step 4: Simplify right side
664,340.70x = 485,493,905,540.39 - Step 5: Solve for x
x = 485,493,905,540.39/664,340.70 - Step 6: Final answer
x = 730,790.55
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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.