Finding the Fourth Proportional to 726,051.20, 1,087,521.60 and 474,108.80
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Solution
The fourth proportional to 726,051.20, 1,087,521.60 and 474,108.80 is: 710,147.66
Step by Step Solution
- Step 1: Write the proportion equation
726,051.20 : 1,087,521.60 = 474,108.80 : x - Step 2: Convert to fraction form
726,051.20/1,087,521.60 = 474,108.80/x - Step 3: Cross multiply
726,051.20x = 1,087,521.60 × 474,108.80 - Step 4: Simplify right side
726,051.20x = 515,603,560,750.08 - Step 5: Solve for x
x = 515,603,560,750.08/726,051.20 - Step 6: Final answer
x = 710,147.66
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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.