Finding the Fourth Proportional to 485,063.61, 664,540.26 and 466,882.23
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Solution
The fourth proportional to 485,063.61, 664,540.26 and 466,882.23 is: 639,631.65
Step by Step Solution
- Step 1: Write the proportion equation
485,063.61 : 664,540.26 = 466,882.23 : x - Step 2: Convert to fraction form
485,063.61/664,540.26 = 466,882.23/x - Step 3: Cross multiply
485,063.61x = 664,540.26 × 466,882.23 - Step 4: Simplify right side
485,063.61x = 310,262,038,513.58 - Step 5: Solve for x
x = 310,262,038,513.58/485,063.61 - Step 6: Final answer
x = 639,631.65
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.