Finding the Fourth Proportional to 488,516.96, 673,816.80 and 343,630.08
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Solution
The fourth proportional to 488,516.96, 673,816.80 and 343,630.08 is: 473,972.74
Step by Step Solution
- Step 1: Write the proportion equation
488,516.96 : 673,816.80 = 343,630.08 : x - Step 2: Convert to fraction form
488,516.96/673,816.80 = 343,630.08/x - Step 3: Cross multiply
488,516.96x = 673,816.80 × 343,630.08 - Step 4: Simplify right side
488,516.96x = 231,543,720,889.34 - Step 5: Solve for x
x = 231,543,720,889.34/488,516.96 - Step 6: Final answer
x = 473,972.74
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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.