Finding the Fourth Proportional to 968,168.19, 1,336,053.09 and 538,439.07
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Solution
The fourth proportional to 968,168.19, 1,336,053.09 and 538,439.07 is: 743,035.34
Step by Step Solution
- Step 1: Write the proportion equation
968,168.19 : 1,336,053.09 = 538,439.07 : x - Step 2: Convert to fraction form
968,168.19/1,336,053.09 = 538,439.07/x - Step 3: Cross multiply
968,168.19x = 1,336,053.09 × 538,439.07 - Step 4: Simplify right side
968,168.19x = 719,383,183,250.23 - Step 5: Solve for x
x = 719,383,183,250.23/968,168.19 - Step 6: Final answer
x = 743,035.34
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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.