Finding the Fourth Proportional to 686,031.02, 1,028,496.99 and 326,021.20
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Solution
The fourth proportional to 686,031.02, 1,028,496.99 and 326,021.20 is: 488,770.64
Step by Step Solution
- Step 1: Write the proportion equation
686,031.02 : 1,028,496.99 = 326,021.20 : x - Step 2: Convert to fraction form
686,031.02/1,028,496.99 = 326,021.20/x - Step 3: Cross multiply
686,031.02x = 1,028,496.99 × 326,021.20 - Step 4: Simplify right side
686,031.02x = 335,311,822,876.19 - Step 5: Solve for x
x = 335,311,822,876.19/686,031.02 - Step 6: Final answer
x = 488,770.64
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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.