Finding the Fourth Proportional to 990,310.24, 1,366,624.56 and 537,601.12
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Solution
The fourth proportional to 990,310.24, 1,366,624.56 and 537,601.12 is: 741,887.61
Step by Step Solution
- Step 1: Write the proportion equation
990,310.24 : 1,366,624.56 = 537,601.12 : x - Step 2: Convert to fraction form
990,310.24/1,366,624.56 = 537,601.12/x - Step 3: Cross multiply
990,310.24x = 1,366,624.56 × 537,601.12 - Step 4: Simplify right side
990,310.24x = 734,698,894,075.51 - Step 5: Solve for x
x = 734,698,894,075.51/990,310.24 - Step 6: Final answer
x = 741,887.61
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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.