Finding the Fourth Proportional to 1,488,579.12, 2,233,163.70 and 423,663.12
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Solution
The fourth proportional to 1,488,579.12, 2,233,163.70 and 423,663.12 is: 635,578.65
Step by Step Solution
- Step 1: Write the proportion equation
1,488,579.12 : 2,233,163.70 = 423,663.12 : x - Step 2: Convert to fraction form
1,488,579.12/2,233,163.70 = 423,663.12/x - Step 3: Cross multiply
1,488,579.12x = 2,233,163.70 × 423,663.12 - Step 4: Simplify right side
1,488,579.12x = 946,109,100,612.74 - Step 5: Solve for x
x = 946,109,100,612.74/1,488,579.12 - Step 6: Final answer
x = 635,578.65
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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.