Finding the Fourth Proportional to 485,035.70, 727,553.55 and 408,053.30
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Solution
The fourth proportional to 485,035.70, 727,553.55 and 408,053.30 is: 612,079.95
Step by Step Solution
- Step 1: Write the proportion equation
485,035.70 : 727,553.55 = 408,053.30 : x - Step 2: Convert to fraction form
485,035.70/727,553.55 = 408,053.30/x - Step 3: Cross multiply
485,035.70x = 727,553.55 × 408,053.30 - Step 4: Simplify right side
485,035.70x = 296,880,627,004.22 - Step 5: Solve for x
x = 296,880,627,004.22/485,035.70 - Step 6: Final answer
x = 612,079.95
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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.