Finding the Fourth Proportional to 1,807,805.22, 2,495,939.88 and 1,120,206.75
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Solution
The fourth proportional to 1,807,805.22, 2,495,939.88 and 1,120,206.75 is: 1,546,609.49
Step by Step Solution
- Step 1: Write the proportion equation
1,807,805.22 : 2,495,939.88 = 1,120,206.75 : x - Step 2: Convert to fraction form
1,807,805.22/2,495,939.88 = 1,120,206.75/x - Step 3: Cross multiply
1,807,805.22x = 2,495,939.88 × 1,120,206.75 - Step 4: Simplify right side
1,807,805.22x = 2,795,968,701,170.19 - Step 5: Solve for x
x = 2,795,968,701,170.19/1,807,805.22 - Step 6: Final answer
x = 1,546,609.49
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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.