Finding the Fourth Proportional to 1,091,609.65, 1,637,337.71 and 408,366.14
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Solution
The fourth proportional to 1,091,609.65, 1,637,337.71 and 408,366.14 is: 612,520.49
Step by Step Solution
- Step 1: Write the proportion equation
1,091,609.65 : 1,637,337.71 = 408,366.14 : x - Step 2: Convert to fraction form
1,091,609.65/1,637,337.71 = 408,366.14/x - Step 3: Cross multiply
1,091,609.65x = 1,637,337.71 × 408,366.14 - Step 4: Simplify right side
1,091,609.65x = 668,633,280,509.14 - Step 5: Solve for x
x = 668,633,280,509.14/1,091,609.65 - Step 6: Final answer
x = 612,520.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.