Finding the Fourth Proportional to 1,821,059.12, 2,513,177.88 and 1,016,243.12
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Solution
The fourth proportional to 1,821,059.12, 2,513,177.88 and 1,016,243.12 is: 1,402,480.40
Step by Step Solution
- Step 1: Write the proportion equation
1,821,059.12 : 2,513,177.88 = 1,016,243.12 : x - Step 2: Convert to fraction form
1,821,059.12/2,513,177.88 = 1,016,243.12/x - Step 3: Cross multiply
1,821,059.12x = 2,513,177.88 × 1,016,243.12 - Step 4: Simplify right side
1,821,059.12x = 2,553,999,729,886.19 - Step 5: Solve for x
x = 2,553,999,729,886.19/1,821,059.12 - Step 6: Final answer
x = 1,402,480.40
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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.