Finding the Fourth Proportional to 748,445.68, 1,121,911.88 and 322,259.44
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Solution
The fourth proportional to 748,445.68, 1,121,911.88 and 322,259.44 is: 483,063.37
Step by Step Solution
- Step 1: Write the proportion equation
748,445.68 : 1,121,911.88 = 322,259.44 : x - Step 2: Convert to fraction form
748,445.68/1,121,911.88 = 322,259.44/x - Step 3: Cross multiply
748,445.68x = 1,121,911.88 × 322,259.44 - Step 4: Simplify right side
748,445.68x = 361,546,694,178.15 - Step 5: Solve for x
x = 361,546,694,178.15/748,445.68 - Step 6: Final answer
x = 483,063.37
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1.5x scale
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.