Finding the Fourth Proportional to 1,915,326.05, 2,643,268.97 and 1,055,884.73
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Solution
The fourth proportional to 1,915,326.05, 2,643,268.97 and 1,055,884.73 is: 1,457,186.54
Step by Step Solution
- Step 1: Write the proportion equation
1,915,326.05 : 2,643,268.97 = 1,055,884.73 : x - Step 2: Convert to fraction form
1,915,326.05/2,643,268.97 = 1,055,884.73/x - Step 3: Cross multiply
1,915,326.05x = 2,643,268.97 × 1,055,884.73 - Step 4: Simplify right side
1,915,326.05x = 2,790,987,337,426.40 - Step 5: Solve for x
x = 2,790,987,337,426.40/1,915,326.05 - Step 6: Final answer
x = 1,457,186.54
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.