Finding the Fourth Proportional to 412,948.20, 619,422.30 and 397,201.80
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Solution
The fourth proportional to 412,948.20, 619,422.30 and 397,201.80 is: 595,802.70
Step by Step Solution
- Step 1: Write the proportion equation
412,948.20 : 619,422.30 = 397,201.80 : x - Step 2: Convert to fraction form
412,948.20/619,422.30 = 397,201.80/x - Step 3: Cross multiply
412,948.20x = 619,422.30 × 397,201.80 - Step 4: Simplify right side
412,948.20x = 246,035,652,520.14 - Step 5: Solve for x
x = 246,035,652,520.14/412,948.20 - Step 6: Final answer
x = 595,802.70
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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.