Finding the Fourth Proportional to 990,045.20, 1,366,254.12 and 537,336.08
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Solution
The fourth proportional to 990,045.20, 1,366,254.12 and 537,336.08 is: 741,519.31
Step by Step Solution
- Step 1: Write the proportion equation
990,045.20 : 1,366,254.12 = 537,336.08 : x - Step 2: Convert to fraction form
990,045.20/1,366,254.12 = 537,336.08/x - Step 3: Cross multiply
990,045.20x = 1,366,254.12 × 537,336.08 - Step 4: Simplify right side
990,045.20x = 734,137,633,124.65 - Step 5: Solve for x
x = 734,137,633,124.65/990,045.20 - Step 6: Final answer
x = 741,519.31
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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.