Finding the Fourth Proportional to 387,735.41, 535,482.79 and 345,468.80
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Solution
The fourth proportional to 387,735.41, 535,482.79 and 345,468.80 is: 477,110.40
Step by Step Solution
- Step 1: Write the proportion equation
387,735.41 : 535,482.79 = 345,468.80 : x - Step 2: Convert to fraction form
387,735.41/535,482.79 = 345,468.80/x - Step 3: Cross multiply
387,735.41x = 535,482.79 × 345,468.80 - Step 4: Simplify right side
387,735.41x = 184,992,594,204.54 - Step 5: Solve for x
x = 184,992,594,204.54/387,735.41 - Step 6: Final answer
x = 477,110.40
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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.