Finding the Fourth Proportional to 1,775,121.20, 2,661,126.60 and 1,064,394.80
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Solution
The fourth proportional to 1,775,121.20, 2,661,126.60 and 1,064,394.80 is: 1,595,659.67
Step by Step Solution
- Step 1: Write the proportion equation
1,775,121.20 : 2,661,126.60 = 1,064,394.80 : x - Step 2: Convert to fraction form
1,775,121.20/2,661,126.60 = 1,064,394.80/x - Step 3: Cross multiply
1,775,121.20x = 2,661,126.60 × 1,064,394.80 - Step 4: Simplify right side
1,775,121.20x = 2,832,489,315,181.68 - Step 5: Solve for x
x = 2,832,489,315,181.68/1,775,121.20 - Step 6: Final answer
x = 1,595,659.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.