Finding the Fourth Proportional to 393,995.68, 590,993.52 and 98,507.68
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Solution
The fourth proportional to 393,995.68, 590,993.52 and 98,507.68 is: 147,761.52
Step by Step Solution
- Step 1: Write the proportion equation
393,995.68 : 590,993.52 = 98,507.68 : x - Step 2: Convert to fraction form
393,995.68/590,993.52 = 98,507.68/x - Step 3: Cross multiply
393,995.68x = 590,993.52 × 98,507.68 - Step 4: Simplify right side
393,995.68x = 58,217,400,550.23 - Step 5: Solve for x
x = 58,217,400,550.23/393,995.68 - Step 6: Final answer
x = 147,761.52
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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.