Finding the Fourth Proportional to 393,070.60, 542,532.49 and 366,476.68
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Solution
The fourth proportional to 393,070.60, 542,532.49 and 366,476.68 is: 505,826.45
Step by Step Solution
- Step 1: Write the proportion equation
393,070.60 : 542,532.49 = 366,476.68 : x - Step 2: Convert to fraction form
393,070.60/542,532.49 = 366,476.68/x - Step 3: Cross multiply
393,070.60x = 542,532.49 × 366,476.68 - Step 4: Simplify right side
393,070.60x = 198,825,505,727.33 - Step 5: Solve for x
x = 198,825,505,727.33/393,070.60 - Step 6: Final answer
x = 505,826.45
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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.