Finding the Fourth Proportional to 639,522.96, 882,531.09 and 353,035.68
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Solution
The fourth proportional to 639,522.96, 882,531.09 and 353,035.68 is: 487,183.39
Step by Step Solution
- Step 1: Write the proportion equation
639,522.96 : 882,531.09 = 353,035.68 : x - Step 2: Convert to fraction form
639,522.96/882,531.09 = 353,035.68/x - Step 3: Cross multiply
639,522.96x = 882,531.09 × 353,035.68 - Step 4: Simplify right side
639,522.96x = 311,564,963,479.29 - Step 5: Solve for x
x = 311,564,963,479.29/639,522.96 - Step 6: Final answer
x = 487,183.39
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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.