Finding the Fourth Proportional to 639,812.96, 882,955.68 and 353,351.36
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Solution
The fourth proportional to 639,812.96, 882,955.68 and 353,351.36 is: 487,632.50
Step by Step Solution
- Step 1: Write the proportion equation
639,812.96 : 882,955.68 = 353,351.36 : x - Step 2: Convert to fraction form
639,812.96/882,955.68 = 353,351.36/x - Step 3: Cross multiply
639,812.96x = 882,955.68 × 353,351.36 - Step 4: Simplify right side
639,812.96x = 311,993,590,347.73 - Step 5: Solve for x
x = 311,993,590,347.73/639,812.96 - Step 6: Final answer
x = 487,632.50
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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.