Finding the Fourth Proportional to 542,330.23, 748,451.74 and 300,622.99
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Solution
The fourth proportional to 542,330.23, 748,451.74 and 300,622.99 is: 414,879.69
Step by Step Solution
- Step 1: Write the proportion equation
542,330.23 : 748,451.74 = 300,622.99 : x - Step 2: Convert to fraction form
542,330.23/748,451.74 = 300,622.99/x - Step 3: Cross multiply
542,330.23x = 748,451.74 × 300,622.99 - Step 4: Simplify right side
542,330.23x = 225,001,799,949.50 - Step 5: Solve for x
x = 225,001,799,949.50/542,330.23 - Step 6: Final answer
x = 414,879.69
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1.5x scale
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.