Finding the Fourth Proportional to 1,118,426.01, 1,677,888.09 and 408,452.91
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Solution
The fourth proportional to 1,118,426.01, 1,677,888.09 and 408,452.91 is: 612,770.33
Step by Step Solution
- Step 1: Write the proportion equation
1,118,426.01 : 1,677,888.09 = 408,452.91 : x - Step 2: Convert to fraction form
1,118,426.01/1,677,888.09 = 408,452.91/x - Step 3: Cross multiply
1,118,426.01x = 1,677,888.09 × 408,452.91 - Step 4: Simplify right side
1,118,426.01x = 685,338,273,014.84 - Step 5: Solve for x
x = 685,338,273,014.84/1,118,426.01 - Step 6: Final answer
x = 612,770.33
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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.