Finding the Fourth Proportional to 455,814.76, 628,615.74 and 379,586.26
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Solution
The fourth proportional to 455,814.76, 628,615.74 and 379,586.26 is: 523,488.75
Step by Step Solution
- Step 1: Write the proportion equation
455,814.76 : 628,615.74 = 379,586.26 : x - Step 2: Convert to fraction form
455,814.76/628,615.74 = 379,586.26/x - Step 3: Cross multiply
455,814.76x = 628,615.74 × 379,586.26 - Step 4: Simplify right side
455,814.76x = 238,613,897,723.73 - Step 5: Solve for x
x = 238,613,897,723.73/455,814.76 - Step 6: Final answer
x = 523,488.75
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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.