Finding the Fourth Proportional to 672,449.13, 1,008,123.99 and 312,844.16
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Solution
The fourth proportional to 672,449.13, 1,008,123.99 and 312,844.16 is: 469,010.49
Step by Step Solution
- Step 1: Write the proportion equation
672,449.13 : 1,008,123.99 = 312,844.16 : x - Step 2: Convert to fraction form
672,449.13/1,008,123.99 = 312,844.16/x - Step 3: Cross multiply
672,449.13x = 1,008,123.99 × 312,844.16 - Step 4: Simplify right side
672,449.13x = 315,385,697,786.78 - Step 5: Solve for x
x = 315,385,697,786.78/672,449.13 - Step 6: Final answer
x = 469,010.49
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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.