Finding the Fourth Proportional to 743,293.21, 1,025,772.78 and 416,612.21
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Solution
The fourth proportional to 743,293.21, 1,025,772.78 and 416,612.21 is: 574,940.63
Step by Step Solution
- Step 1: Write the proportion equation
743,293.21 : 1,025,772.78 = 416,612.21 : x - Step 2: Convert to fraction form
743,293.21/1,025,772.78 = 416,612.21/x - Step 3: Cross multiply
743,293.21x = 1,025,772.78 × 416,612.21 - Step 4: Simplify right side
743,293.21x = 427,349,464,608.69 - Step 5: Solve for x
x = 427,349,464,608.69/743,293.21 - Step 6: Final answer
x = 574,940.63
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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.