Finding the Fourth Proportional to 664,367.70, 996,988.95 and 380,057.70
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Solution
The fourth proportional to 664,367.70, 996,988.95 and 380,057.70 is: 570,336.77
Step by Step Solution
- Step 1: Write the proportion equation
664,367.70 : 996,988.95 = 380,057.70 : x - Step 2: Convert to fraction form
664,367.70/996,988.95 = 380,057.70/x - Step 3: Cross multiply
664,367.70x = 996,988.95 × 380,057.70 - Step 4: Simplify right side
664,367.70x = 378,913,327,262.42 - Step 5: Solve for x
x = 378,913,327,262.42/664,367.70 - Step 6: Final answer
x = 570,336.77
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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.