Finding the Fourth Proportional to 664,599.20, 996,898.80 and 309,649.10
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Solution
The fourth proportional to 664,599.20, 996,898.80 and 309,649.10 is: 464,473.65
Step by Step Solution
- Step 1: Write the proportion equation
664,599.20 : 996,898.80 = 309,649.10 : x - Step 2: Convert to fraction form
664,599.20/996,898.80 = 309,649.10/x - Step 3: Cross multiply
664,599.20x = 996,898.80 × 309,649.10 - Step 4: Simplify right side
664,599.20x = 308,688,816,211.08 - Step 5: Solve for x
x = 308,688,816,211.08/664,599.20 - Step 6: Final answer
x = 464,473.65
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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.