Finding the Fourth Proportional to 989,879.13, 1,366,033.17 and 537,170.13
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Solution
The fourth proportional to 989,879.13, 1,366,033.17 and 537,170.13 is: 741,294.76
Step by Step Solution
- Step 1: Write the proportion equation
989,879.13 : 1,366,033.17 = 537,170.13 : x - Step 2: Convert to fraction form
989,879.13/1,366,033.17 = 537,170.13/x - Step 3: Cross multiply
989,879.13x = 1,366,033.17 × 537,170.13 - Step 4: Simplify right side
989,879.13x = 733,792,215,513.21 - Step 5: Solve for x
x = 733,792,215,513.21/989,879.13 - Step 6: Final answer
x = 741,294.76
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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.