Finding the Fourth Proportional to 1,661,067.12, 2,289,580.44 and 1,297,857.52
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Solution
The fourth proportional to 1,661,067.12, 2,289,580.44 and 1,297,857.52 is: 1,788,939.87
Step by Step Solution
- Step 1: Write the proportion equation
1,661,067.12 : 2,289,580.44 = 1,297,857.52 : x - Step 2: Convert to fraction form
1,661,067.12/2,289,580.44 = 1,297,857.52/x - Step 3: Cross multiply
1,661,067.12x = 2,289,580.44 × 1,297,857.52 - Step 4: Simplify right side
1,661,067.12x = 2,971,549,191,698.91 - Step 5: Solve for x
x = 2,971,549,191,698.91/1,661,067.12 - Step 6: Final answer
x = 1,788,939.87
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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.