Finding the Fourth Proportional to 1,331,809.80, 1,837,904.62 and 728,197.80
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Solution
The fourth proportional to 1,331,809.80, 1,837,904.62 and 728,197.80 is: 1,004,916.84
Step by Step Solution
- Step 1: Write the proportion equation
1,331,809.80 : 1,837,904.62 = 728,197.80 : x - Step 2: Convert to fraction form
1,331,809.80/1,837,904.62 = 728,197.80/x - Step 3: Cross multiply
1,331,809.80x = 1,837,904.62 × 728,197.80 - Step 4: Simplify right side
1,331,809.80x = 1,338,358,100,893.84 - Step 5: Solve for x
x = 1,338,358,100,893.84/1,331,809.80 - Step 6: Final answer
x = 1,004,916.84
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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.