Finding the Fourth Proportional to 414,543.16, 621,814.74 and 115,023.80
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Solution
The fourth proportional to 414,543.16, 621,814.74 and 115,023.80 is: 172,535.70
Step by Step Solution
- Step 1: Write the proportion equation
414,543.16 : 621,814.74 = 115,023.80 : x - Step 2: Convert to fraction form
414,543.16/621,814.74 = 115,023.80/x - Step 3: Cross multiply
414,543.16x = 621,814.74 × 115,023.80 - Step 4: Simplify right side
414,543.16x = 71,523,494,290.81 - Step 5: Solve for x
x = 71,523,494,290.81/414,543.16 - Step 6: Final answer
x = 172,535.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.