Finding the Fourth Proportional to 458,343.14, 632,629.80 and 313,207.70
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Solution
The fourth proportional to 458,343.14, 632,629.80 and 313,207.70 is: 432,306.08
Step by Step Solution
- Step 1: Write the proportion equation
458,343.14 : 632,629.80 = 313,207.70 : x - Step 2: Convert to fraction form
458,343.14/632,629.80 = 313,207.70/x - Step 3: Cross multiply
458,343.14x = 632,629.80 × 313,207.70 - Step 4: Simplify right side
458,343.14x = 198,144,524,609.46 - Step 5: Solve for x
x = 198,144,524,609.46/458,343.14 - Step 6: Final answer
x = 432,306.08
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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.