Finding the Fourth Proportional to 1,345,231.51, 1,855,369.73 and 861,841.63
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Solution
The fourth proportional to 1,345,231.51, 1,855,369.73 and 861,841.63 is: 1,188,668.92
Step by Step Solution
- Step 1: Write the proportion equation
1,345,231.51 : 1,855,369.73 = 861,841.63 : x - Step 2: Convert to fraction form
1,345,231.51/1,855,369.73 = 861,841.63/x - Step 3: Cross multiply
1,345,231.51x = 1,855,369.73 × 861,841.63 - Step 4: Simplify right side
1,345,231.51x = 1,599,034,876,829.68 - Step 5: Solve for x
x = 1,599,034,876,829.68/1,345,231.51 - Step 6: Final answer
x = 1,188,668.92
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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.