Finding the Fourth Proportional to 919,234.89, 1,378,852.73 and 288,197.91
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Solution
The fourth proportional to 919,234.89, 1,378,852.73 and 288,197.91 is: 432,296.99
Step by Step Solution
- Step 1: Write the proportion equation
919,234.89 : 1,378,852.73 = 288,197.91 : x - Step 2: Convert to fraction form
919,234.89/1,378,852.73 = 288,197.91/x - Step 3: Cross multiply
919,234.89x = 1,378,852.73 × 288,197.91 - Step 4: Simplify right side
919,234.89x = 397,382,474,983.79 - Step 5: Solve for x
x = 397,382,474,983.79/919,234.89 - Step 6: Final answer
x = 432,296.99
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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.