Finding the Fourth Proportional to 528,629.68, 728,703.84 and 324,302.32
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Solution
The fourth proportional to 528,629.68, 728,703.84 and 324,302.32 is: 447,043.28
Step by Step Solution
- Step 1: Write the proportion equation
528,629.68 : 728,703.84 = 324,302.32 : x - Step 2: Convert to fraction form
528,629.68/728,703.84 = 324,302.32/x - Step 3: Cross multiply
528,629.68x = 728,703.84 × 324,302.32 - Step 4: Simplify right side
528,629.68x = 236,320,345,904.91 - Step 5: Solve for x
x = 236,320,345,904.91/528,629.68 - Step 6: Final answer
x = 447,043.28
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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.