Finding the Fourth Proportional to 989,903.92, 1,366,067.36 and 537,194.92
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Solution
The fourth proportional to 989,903.92, 1,366,067.36 and 537,194.92 is: 741,328.96
Step by Step Solution
- Step 1: Write the proportion equation
989,903.92 : 1,366,067.36 = 537,194.92 : x - Step 2: Convert to fraction form
989,903.92/1,366,067.36 = 537,194.92/x - Step 3: Cross multiply
989,903.92x = 1,366,067.36 × 537,194.92 - Step 4: Simplify right side
989,903.92x = 733,844,446,169.81 - Step 5: Solve for x
x = 733,844,446,169.81/989,903.92 - Step 6: Final answer
x = 741,328.96
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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.