Finding the Fourth Proportional to 857,755.19, 1,183,844.13 and 475,904.99
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Solution
The fourth proportional to 857,755.19, 1,183,844.13 and 475,904.99 is: 656,827.65
Step by Step Solution
- Step 1: Write the proportion equation
857,755.19 : 1,183,844.13 = 475,904.99 : x - Step 2: Convert to fraction form
857,755.19/1,183,844.13 = 475,904.99/x - Step 3: Cross multiply
857,755.19x = 1,183,844.13 × 475,904.99 - Step 4: Simplify right side
857,755.19x = 563,397,328,849.21 - Step 5: Solve for x
x = 563,397,328,849.21/857,755.19 - Step 6: Final answer
x = 656,827.65
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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.