Finding the Fourth Proportional to 721,781.24, 996,022.58 and 411,696.08
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Solution
The fourth proportional to 721,781.24, 996,022.58 and 411,696.08 is: 568,120.32
Step by Step Solution
- Step 1: Write the proportion equation
721,781.24 : 996,022.58 = 411,696.08 : x - Step 2: Convert to fraction form
721,781.24/996,022.58 = 411,696.08/x - Step 3: Cross multiply
721,781.24x = 996,022.58 × 411,696.08 - Step 4: Simplify right side
721,781.24x = 410,058,591,777.49 - Step 5: Solve for x
x = 410,058,591,777.49/721,781.24 - Step 6: Final answer
x = 568,120.32
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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.