Finding the Fourth Proportional to 496,243.49, 684,815.99 and 281,383.49
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Solution
The fourth proportional to 496,243.49, 684,815.99 and 281,383.49 is: 388,309.21
Step by Step Solution
- Step 1: Write the proportion equation
496,243.49 : 684,815.99 = 281,383.49 : x - Step 2: Convert to fraction form
496,243.49/684,815.99 = 281,383.49/x - Step 3: Cross multiply
496,243.49x = 684,815.99 × 281,383.49 - Step 4: Simplify right side
496,243.49x = 192,695,913,579.13 - Step 5: Solve for x
x = 192,695,913,579.13/496,243.49 - Step 6: Final answer
x = 388,309.21
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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.