Finding the Fourth Proportional to 557,445.62, 768,851.12 and 385,649.48
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Solution
The fourth proportional to 557,445.62, 768,851.12 and 385,649.48 is: 531,903.07
Step by Step Solution
- Step 1: Write the proportion equation
557,445.62 : 768,851.12 = 385,649.48 : x - Step 2: Convert to fraction form
557,445.62/768,851.12 = 385,649.48/x - Step 3: Cross multiply
557,445.62x = 768,851.12 × 385,649.48 - Step 4: Simplify right side
557,445.62x = 296,507,034,625.42 - Step 5: Solve for x
x = 296,507,034,625.42/557,445.62 - Step 6: Final answer
x = 531,903.07
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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.