Finding the Fourth Proportional to 3,087,013.09, 4,260,078.07 and 1,728,886.09
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Solution
The fourth proportional to 3,087,013.09, 4,260,078.07 and 1,728,886.09 is: 2,385,862.81
Step by Step Solution
- Step 1: Write the proportion equation
3,087,013.09 : 4,260,078.07 = 1,728,886.09 : x - Step 2: Convert to fraction form
3,087,013.09/4,260,078.07 = 1,728,886.09/x - Step 3: Cross multiply
3,087,013.09x = 4,260,078.07 × 1,728,886.09 - Step 4: Simplify right side
3,087,013.09x = 7,365,189,717,537.05 - Step 5: Solve for x
x = 7,365,189,717,537.05/3,087,013.09 - Step 6: Final answer
x = 2,385,862.81
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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.