Finding the Fourth Proportional to 919,612.26, 1,379,418.93 and 254,764.26
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Solution
The fourth proportional to 919,612.26, 1,379,418.93 and 254,764.26 is: 382,146.54
Step by Step Solution
- Step 1: Write the proportion equation
919,612.26 : 1,379,418.93 = 254,764.26 : x - Step 2: Convert to fraction form
919,612.26/1,379,418.93 = 254,764.26/x - Step 3: Cross multiply
919,612.26x = 1,379,418.93 × 254,764.26 - Step 4: Simplify right side
919,612.26x = 351,426,642,931.44 - Step 5: Solve for x
x = 351,426,642,931.44/919,612.26 - Step 6: Final answer
x = 382,146.54
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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.