Finding the Fourth Proportional to 411,214.20, 616,821.30 and 395,467.80
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Solution
The fourth proportional to 411,214.20, 616,821.30 and 395,467.80 is: 593,201.70
Step by Step Solution
- Step 1: Write the proportion equation
411,214.20 : 616,821.30 = 395,467.80 : x - Step 2: Convert to fraction form
411,214.20/616,821.30 = 395,467.80/x - Step 3: Cross multiply
411,214.20x = 616,821.30 × 395,467.80 - Step 4: Simplify right side
411,214.20x = 243,932,962,504.14 - Step 5: Solve for x
x = 243,932,962,504.14/411,214.20 - Step 6: Final answer
x = 593,201.70
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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.