Finding the Fourth Proportional to 666,213.68, 919,116.64 and 424,452.96
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Solution
The fourth proportional to 666,213.68, 919,116.64 and 424,452.96 is: 585,580.56
Step by Step Solution
- Step 1: Write the proportion equation
666,213.68 : 919,116.64 = 424,452.96 : x - Step 2: Convert to fraction form
666,213.68/919,116.64 = 424,452.96/x - Step 3: Cross multiply
666,213.68x = 919,116.64 × 424,452.96 - Step 4: Simplify right side
666,213.68x = 390,121,778,433.25 - Step 5: Solve for x
x = 390,121,778,433.25/666,213.68 - Step 6: Final answer
x = 585,580.56
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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.