Finding the Fourth Proportional to 721,294.24, 995,368.08 and 399,022.24
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Solution
The fourth proportional to 721,294.24, 995,368.08 and 399,022.24 is: 550,640.75
Step by Step Solution
- Step 1: Write the proportion equation
721,294.24 : 995,368.08 = 399,022.24 : x - Step 2: Convert to fraction form
721,294.24/995,368.08 = 399,022.24/x - Step 3: Cross multiply
721,294.24x = 995,368.08 × 399,022.24 - Step 4: Simplify right side
721,294.24x = 397,174,000,906.10 - Step 5: Solve for x
x = 397,174,000,906.10/721,294.24 - Step 6: Final answer
x = 550,640.75
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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.