Finding the Fourth Proportional to 639,464.76, 882,724.14 and 436,186.68
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Solution
The fourth proportional to 639,464.76, 882,724.14 and 436,186.68 is: 602,116.86
Step by Step Solution
- Step 1: Write the proportion equation
639,464.76 : 882,724.14 = 436,186.68 : x - Step 2: Convert to fraction form
639,464.76/882,724.14 = 436,186.68/x - Step 3: Cross multiply
639,464.76x = 882,724.14 × 436,186.68 - Step 4: Simplify right side
639,464.76x = 385,032,511,982.46 - Step 5: Solve for x
x = 385,032,511,982.46/639,464.76 - Step 6: Final answer
x = 602,116.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.